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1 Available, 551 Aired
Last Aired S44E06 on Nov 09, 2016
1 episodes available of 551 aired
5.8 (22 Ratings)
60 Min

PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and technology, and highlights the people involved in scientific pursuits.

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Show Keywords: documentary, nature, science
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All NOVA (1974) Episodes

NOVA Seasons

  1. Watch NOVA Season 44 S44
    1 of 4 Ep. Available 2016
  2. 0 of 12 Ep. Available 2015
  3. 0 of 12 Ep. Available 2014
  4. 0 of 15 Ep. Available 2012
  5. 0 of 14 Ep. Available 2011
  6. 0 of 10 Ep. Available 2010
  7. 0 of 11 Ep. Available 2008
  8. 0 of 9 Ep. Available 2006
  9. 0 of 14 Ep. Available 2005
  10. 0 of 12 Ep. Available 2004
  11. 0 of 17 Ep. Available 2003
  12. 0 of 12 Ep. Available 2002
  13. 0 of 15 Ep. Available 2000
  14. 0 of 16 Ep. Available 1998
  15. 0 of 14 Ep. Available 1997
  16. 0 of 19 Ep. Available 1996
  17. 0 of 16 Ep. Available 1995
  18. 0 of 13 Ep. Available 1995
  19. 0 of 15 Ep. Available 1994
  20. 0 of 18 Ep. Available 1993
  21. 0 of 17 Ep. Available 1992
  22. 0 of 18 Ep. Available 1991
  23. 0 of 13 Ep. Available 1990
  24. 0 of 9 Ep. Available 1988
  25. 0 of 17 Ep. Available 1987
  26. 0 of 19 Ep. Available 1986
  27. 0 of 20 Ep. Available 1985
  28. 0 of 17 Ep. Available 1984
  29. 0 of 20 Ep. Available 1983
  30. 0 of 18 Ep. Available 1982
  31. 0 of 19 Ep. Available 1981
  32. 0 of 19 Ep. Available 1980
  33. 0 of 13 Ep. Available 1978
  34. 0 of 19 Ep. Available 1977
  35. 0 of 16 Ep. Available 1976
  36. 0 of 16 Ep. Available 1974
  37. 0 of 13 Ep. Available 1974

NOVA Episodes

  1. 6 Watch NOVA S44E06 online - Treasures of the Earth: Metals
    Not Available Aired on Nov 09, 2016
  2. 5
    Available Aired on Nov 02, 2016
  3. 2
    Not Available Aired on Sep 14, 2016
  4. 1
    Not Available Aired on Sep 07, 2016
  1. 22
    Not Available Aired on May 11, 2016
  2. 21
    Not Available Aired on May 04, 2016
  3. 20
    Not Available Aired on Apr 20, 2016
  4. 18
    Not Available Aired on Apr 06, 2016
  5. 14
    Not Available Aired on Feb 03, 2016
  6. 12
    Not Available Aired on Jan 20, 2016
  7. 9
    Not Available Aired on Nov 25, 2015
  8. 8
    Not Available Aired on Nov 18, 2015
  9. 7
    Not Available Aired on Nov 11, 2015
  10. 6
    Not Available Aired on Nov 04, 2015
  11. 2
    Not Available Aired on Sep 23, 2015
  12. 1
    Not Available Aired on Sep 16, 2015
  1. 22
    Not Available Aired on Jul 29, 2015
  2. 21
    Not Available Aired on Jul 15, 2015
  3. 20
    Not Available Aired on May 13, 2015
  4. 19
    Not Available Aired on May 06, 2015
  5. 18
    Not Available Aired on Apr 22, 2015
  6. 15
    Not Available Aired on Feb 18, 2015
  7. 11
    Not Available Aired on Jan 14, 2015
  8. 10
    Not Available Aired on Dec 03, 2014
  9. 8
    Not Available Aired on Nov 12, 2014
  10. 7
    Not Available Aired on Nov 05, 2014
  11. 3
    Not Available Aired on Oct 08, 2014
  12. 1
    Not Available Aired on Sep 10, 2014
  1. 20
    Not Available Aired on May 29, 2013
  2. 18
    Not Available Aired on May 01, 2013
  3. 17
    Not Available Aired on Apr 24, 2013
  4. 15
    Not Available Aired on Apr 10, 2013
  5. 13
    Not Available Aired on Mar 27, 2013
  6. 12
    Not Available Aired on Feb 20, 2013
  7. 10
    Not Available Aired on Feb 06, 2013
  8. 8
    Not Available Aired on Jan 23, 2013
  9. 7
    Not Available Aired on Jan 09, 2013
  10. 6
    Not Available Aired on Jan 02, 2013
  11. 5
    Not Available Aired on Nov 18, 2012
  12. 4
    Not Available Aired on Nov 14, 2012
  13. 3
    Not Available Aired on Nov 07, 2012
  14. 2
    Not Available Aired on Oct 17, 2012
  15. 1
    Not Available Aired on Oct 10, 2012
  1. 18
    Not Available Aired on Apr 18, 2012
  2. 17
    Not Available Aired on Apr 11, 2012
  3. 16
    Not Available Aired on Apr 04, 2012
  4. 15
    Not Available Aired on Mar 28, 2012
  5. 14
    Not Available Aired on Feb 08, 2012
  6. 13
    Not Available Aired on Feb 01, 2012
  7. 12
    Not Available Aired on Jan 25, 2012
  8. 11
    Not Available Aired on Jan 18, 2012
  9. 9
    Not Available Aired on Jan 04, 2012
  10. 8
    Not Available Aired on Nov 23, 2011
  11. 4
    Not Available Aired on Oct 26, 2011
  12. 3
    Not Available Aired on Oct 19, 2011
  13. 2
    Not Available Aired on Sep 28, 2011
  14. 1
    Not Available Aired on Sep 07, 2011
  1. 18
    Not Available Aired on Feb 09, 2011
  2. 17
    Not Available Aired on Apr 20, 2011
  3. 16
    Not Available Aired on Mar 30, 2011
  4. 15
    Not Available Aired on Feb 23, 2011
  5. 14
    Not Available Aired on Feb 16, 2011
  6. 7
    Not Available Aired on Dec 28, 2010
  7. 6
    Not Available Aired on Nov 23, 2010
  8. 4
    Not Available Aired on Nov 09, 2010
  9. 3
    Not Available Aired on Nov 02, 2010
  10. 1
    Not Available Aired on Oct 19, 2010
  1. 17
    Not Available Aired on Jun 30, 2009
  2. 16
    Not Available Aired on Apr 14, 2009
  3. 13
    Not Available Aired on Mar 24, 2009
  4. 12
    Not Available Aired on Feb 24, 2009
  5. 10
    Not Available Aired on Jan 27, 2009
  6. 9
    Not Available Aired on Jan 20, 2009
  7. 6
    Not Available Aired on Nov 18, 2008
  8. 4
    Not Available Aired on Oct 28, 2008
  9. 3
    Not Available Aired on Oct 21, 2008
  10. 2
    Not Available Aired on Oct 14, 2008
  11. 1
    Not Available Aired on Oct 07, 2008
  1. 13
    Not Available Aired on May 08, 2007
  2. 9
    Not Available Aired on Feb 13, 2007
  3. 8
    Not Available Aired on Feb 06, 2007
  4. 7
    Not Available Aired on Dec 26, 2006
  5. 6
    Not Available Aired on Nov 14, 2006
  6. 5
    Not Available Aired on Nov 07, 2006
  7. 4
    Not Available Aired on Oct 31, 2006
  8. 3
    Not Available Aired on Oct 17, 2006
  9. 1
    Not Available Aired on Sep 05, 2006
  1. 16
    Not Available Aired on Apr 18, 2006
  2. 15
    Not Available Aired on Apr 04, 2006
  3. 14
    Not Available Aired on Mar 28, 2006
  4. 13
    Not Available Aired on Feb 28, 2006
  5. 12
    Not Available Aired on Feb 21, 2006
  6. 11
    Not Available Aired on Feb 14, 2006
  7. 10
    Not Available Aired on Feb 07, 2006
  8. 9
    Not Available Aired on Jan 17, 2006
  9. 6
    Not Available Aired on Nov 15, 2005
  10. 5
    Not Available Aired on Nov 08, 2005
  11. 4
    Not Available Aired on Nov 01, 2005
  12. 3
    Not Available Aired on Oct 11, 2005
  13. 2
    Not Available Aired on Oct 04, 2005
  14. 1
    Not Available Aired on Sep 20, 2005
  1. 14
    Not Available Aired on Feb 22, 2005
  2. 13
    Not Available Aired on Feb 15, 2005
  3. 12
    Not Available Aired on Feb 08, 2005
  4. 11
    Not Available Aired on Jan 18, 2005
  5. 10
    Not Available Aired on Jan 11, 2005
  6. 9
    Not Available Aired on Jan 04, 2005
  7. 8
    Not Available Aired on Nov 23, 2004
  8. 6
    Not Available Aired on Nov 09, 2004
  9. 5
    Not Available Aired on Oct 12, 2004
  10. 4
    Not Available Aired on Sep 29, 2004
  11. 2
    Not Available Aired on Sep 28, 2004
  12. 1
    Not Available Aired on Sep 28, 2004
  1. 18
    Not Available Aired on May 04, 2004
  2. 17
    Not Available Aired on Apr 20, 2004
  3. 16
    Not Available Aired on Apr 20, 2004
  4. 15
    Not Available Aired on Mar 30, 2004
  5. 14
    Not Available Aired on Mar 02, 2004
  6. 13
    Not Available Aired on Feb 17, 2004
  7. 12
    Not Available Aired on Feb 10, 2004
  8. 11
    Not Available Aired on Feb 03, 2004
  9. 10
    Not Available Aired on Jan 20, 2004
  10. 9
    Not Available Aired on Jan 04, 2004
  11. 7
    Not Available Aired on Nov 18, 2003
  12. 6
    Not Available Aired on Nov 11, 2003
  13. 5
    Not Available Aired on Nov 04, 2003
  14. 4
    Not Available Aired on Oct 28, 2003
  15. 3
    Not Available Aired on Oct 28, 2003
  16. 2
    Not Available Aired on Oct 07, 2003
  17. 1
    Not Available Aired on Sep 30, 2003
  1. 16
    Not Available Aired on Apr 15, 2003
  2. 15
    Not Available Aired on Apr 01, 2003
  3. 13
    Not Available Aired on Feb 18, 2003
  4. 12
    Not Available Aired on Feb 11, 2003
  5. 11
    Not Available Aired on Feb 04, 2003
  6. 10
    Not Available Aired on Jan 21, 2003
  7. 9
    Not Available Aired on Jan 14, 2003
  8. 8
    Not Available Aired on Jan 07, 2003
  9. 7
    Not Available Aired on Nov 26, 2002
  10. 5
    Not Available Aired on Nov 12, 2002
  11. 3
    Not Available Aired on Oct 08, 2002
  12. 2
    Not Available Aired on Oct 01, 2002
  1. 17
    Not Available Aired on Apr 24, 2001
  2. 15
    Not Available Aired on Apr 10, 2001
  3. 14
    Not Available Aired on Apr 03, 2001
  4. 13
    Not Available Aired on Mar 27, 2001
  5. 12
    Not Available Aired on Feb 27, 2001
  6. 11
    Not Available Aired on Feb 13, 2001
  7. 10
    Not Available Aired on Feb 06, 2001
  8. 9
    Not Available Aired on Jan 30, 2001
  9. 8
    Not Available Aired on Jan 16, 2001
  10. 7
    Not Available Aired on Dec 18, 2000
  11. 6
    Not Available Aired on Dec 12, 2000
  12. 5
    Not Available Aired on Nov 28, 2000
  13. 4
    Not Available Aired on Nov 21, 2000
  14. 3
    Not Available Aired on Nov 14, 2000
  15. 2
    Not Available Aired on Oct 31, 2000
  1. 19
    Not Available Aired on Mar 30, 1999
  2. 18
    Not Available Aired on Feb 23, 1999
  3. 17
    Not Available Aired on Feb 17, 1999
  4. 15
    Not Available Aired on Feb 16, 1999
  5. 14
    Not Available Aired on Feb 16, 1999
  6. 13
    Not Available Aired on Oct 06, 1999
  7. 12
    Not Available Aired on Jan 19, 1999
  8. 10
    Not Available Aired on Dec 29, 1998
  9. 9
    Not Available Aired on Dec 01, 1998
  10. 7
    Not Available Aired on Nov 24, 1998
  11. 6
    Not Available Aired on Nov 24, 1998
  12. 5
    Not Available Aired on Nov 10, 1998
  13. 4
    Not Available Aired on Nov 03, 1998
  14. 3
    Not Available Aired on Oct 27, 1998
  15. 2
    Not Available Aired on Oct 13, 1998
  16. 1
    Not Available Aired on Oct 06, 1998
  1. 19
    Not Available Aired on May 12, 1998
  2. 17
    Not Available Aired on Apr 21, 1998
  3. 16
    Not Available Aired on Mar 31, 1998
  4. 15
    Not Available Aired on Feb 24, 1998
  5. 14
    Not Available Aired on Feb 10, 1998
  6. 12
    Not Available Aired on Jan 27, 1998
  7. 11
    Not Available Aired on Jan 20, 1998
  8. 8
    Not Available Aired on Nov 25, 1997
  9. 7
    Not Available Aired on Nov 18, 1997
  10. 6
    Not Available Aired on Nov 12, 1997
  11. 5
    Not Available Aired on Nov 11, 1997
  12. 4
    Not Available Aired on Oct 28, 1997
  13. 3
    Not Available Aired on Oct 21, 1997
  14. 2
    Not Available Aired on Oct 14, 1997
  1. 21
    Not Available Aired on Apr 15, 1997
  2. 20
    Not Available Aired on Apr 08, 1997
  3. 19
    Not Available Aired on Feb 25, 1997
  4. 18
    Not Available Aired on Feb 18, 1997
  5. 17
    Not Available Aired on Feb 12, 1997
  6. 16
    Not Available Aired on Feb 12, 1997
  7. 15
    Not Available Aired on Feb 11, 1997
  8. 14
    Not Available Aired on Feb 11, 1997
  9. 12
    Not Available Aired on Jan 28, 1997
  10. 11
    Not Available Aired on Jan 14, 1997
  11. 10
    Not Available Aired on Dec 31, 1996
  12. 9
    Not Available Aired on Nov 26, 1996
  13. 8
    Not Available Aired on Nov 25, 1996
  14. 7
    Not Available Aired on Nov 24, 1996
  15. 5
    Not Available Aired on Nov 12, 1996
  16. 4
    Not Available Aired on Oct 22, 1996
  17. 3
    Not Available Aired on Oct 15, 1996
  18. 2
    Not Available Aired on Oct 08, 1996
  19. 1
    Not Available Aired on Oct 01, 1996
  1. 19
    Not Available Aired on Apr 16, 1996
  2. 17
    Not Available Aired on Apr 02, 1996
  3. 16
    Not Available Aired on Mar 26, 1996
  4. 15
    Not Available Aired on Feb 27, 1996
  5. 14
    Not Available Aired on Feb 20, 1996
  6. 13
    Not Available Aired on Feb 06, 1996
  7. 11
    Not Available Aired on Jan 16, 1996
  8. 10
    Not Available Aired on Jan 09, 1996
  9. 9
    Not Available Aired on Dec 26, 1995
  10. 8
    Not Available Aired on Dec 19, 1995
  11. 7
    Not Available Aired on Nov 28, 1995
  12. 6
    Not Available Aired on Nov 14, 1995
  13. 5
    Not Available Aired on Nov 07, 1995
  14. 4
    Not Available Aired on Oct 31, 1995
  15. 3
    Not Available Aired on Oct 24, 1995
  16. 1
    Not Available Aired on Oct 10, 1995
  1. 20
    Not Available Aired on Feb 23, 1995
  2. 19
    Not Available Aired on Feb 22, 1995
  3. 18
    Not Available Aired on Feb 21, 1995
  4. 17
    Not Available Aired on Feb 20, 1995
  5. 16
    Not Available Aired on Feb 19, 1995
  6. 8
    Not Available Aired on May 23, 1995
  7. 7
    Not Available Aired on May 03, 1995
  8. 6
    Not Available Aired on Mar 07, 1995
  9. 5
    Not Available Aired on Feb 14, 1995
  10. 4
    Not Available Aired on Feb 07, 1995
  11. 3
    Not Available Aired on Jan 31, 1995
  12. 2
    Not Available Aired on Jan 24, 1995
  13. 1
    Not Available Aired on Jan 09, 1995
  1. 20
    Not Available Aired on Dec 27, 1994
  2. 19
    Not Available Aired on Dec 20, 1994
  3. 17
    Not Available Aired on Nov 29, 1994
  4. 16
    Not Available Aired on Nov 15, 1994
  5. 15
    Not Available Aired on Nov 08, 1994
  6. 14
    Not Available Aired on Nov 01, 1994
  7. 13
    Not Available Aired on Oct 25, 1994
  8. 11
    Not Available Aired on Oct 11, 1994
  9. 10
    Not Available Aired on Apr 19, 1994
  10. 9
    Not Available Aired on Apr 12, 1994
  11. 7
    Not Available Aired on Mar 01, 1994
  12. 6
    Not Available Aired on Feb 28, 1994
  13. 4
    Not Available Aired on Feb 08, 1994
  14. 2
    Not Available Aired on Jan 25, 1994
  15. 1
    Not Available Aired on Jan 18, 1994
  1. 20
    Not Available Aired on Dec 28, 1993
  2. 19
    Not Available Aired on Dec 21, 1993
  3. 18
    Not Available Aired on Dec 07, 1993
  4. 17
    Not Available Aired on Nov 30, 1993
  5. 16
    Not Available Aired on Nov 16, 1993
  6. 14
    Not Available Aired on Nov 02, 1993
  7. 12
    Not Available Aired on Oct 19, 1993
  8. 11
    Not Available Aired on Oct 12, 1993
  9. 10
    Not Available Aired on Oct 05, 1993
  10. 9
    Not Available Aired on Mar 30, 1993
  11. 8
    Not Available Aired on Mar 02, 1993
  12. 7
    Not Available Aired on Feb 23, 1993
  13. 6
    Not Available Aired on Feb 16, 1993
  14. 5
    Not Available Aired on Feb 09, 1993
  15. 4
    Not Available Aired on Feb 02, 1993
  16. 3
    Not Available Aired on Jan 26, 1993
  17. 2
    Not Available Aired on Jan 19, 1993
  18. 1
    Not Available Aired on Jan 05, 1993
  1. 20
    Not Available Aired on Dec 29, 1992
  2. 19
    Not Available Aired on Dec 22, 1992
  3. 18
    Not Available Aired on Dec 01, 1992
  4. 17
    Not Available Aired on Nov 17, 1992
  5. 16
    Not Available Aired on Nov 10, 1992
  6. 15
    Not Available Aired on Nov 04, 1992
  7. 14
    Not Available Aired on Oct 27, 1992
  8. 13
    Not Available Aired on Oct 20, 1992
  9. 12
    Not Available Aired on Oct 13, 1992
  10. 11
    Not Available Aired on Sep 29, 1992
  11. 9
    Not Available Aired on Mar 24, 1992
  12. 7
    Not Available Aired on Mar 10, 1992
  13. 6
    Not Available Aired on Mar 03, 1992
  14. 5
    Not Available Aired on Feb 18, 1992
  15. 4
    Not Available Aired on Feb 11, 1992
  16. 2
    Not Available Aired on Jan 21, 1992
  17. 1
    Not Available Aired on Jan 14, 1992
  1. 19
    Not Available Aired on Dec 17, 1991
  2. 18
    Not Available Aired on Dec 10, 1991
  3. 17
    Not Available Aired on Dec 03, 1991
  4. 16
    Not Available Aired on Nov 12, 1991
  5. 15
    Not Available Aired on Nov 05, 1991
  6. 14
    Not Available Aired on Oct 22, 1991
  7. 13
    Not Available Aired on Oct 15, 1991
  8. 12
    Not Available Aired on Oct 09, 1991
  9. 11
    Not Available Aired on Oct 01, 1991
  10. 10
    Not Available Aired on Mar 05, 1991
  11. 9
    Not Available Aired on Feb 28, 1991
  12. 8
    Not Available Aired on Feb 27, 1991
  13. 7
    Not Available Aired on Feb 26, 1991
  14. 6
    Not Available Aired on Feb 19, 1991
  15. 5
    Not Available Aired on Feb 12, 1991
  16. 4
    Not Available Aired on Feb 05, 1991
  17. 3
    Not Available Aired on Mar 26, 1991
  18. 1
    Not Available Aired on Jan 08, 1991
  1. 20
    Not Available Aired on Dec 18, 1990
  2. 18
    Not Available Aired on Nov 27, 1990
  3. 16
    Not Available Aired on Nov 13, 1990
  4. 15
    Not Available Aired on Nov 06, 1990
  5. 12
    Not Available Aired on Oct 16, 1990
  6. 11
    Not Available Aired on Oct 09, 1990
  7. 9
    Not Available Aired on Apr 10, 1990
  8. 8
    Not Available Aired on Apr 03, 1990
  9. 7
    Not Available Aired on Mar 27, 1990
  10. 5
    Not Available Aired on Feb 27, 1990
  11. 4
    Not Available Aired on Feb 13, 1990
  12. 3
    Not Available Aired on Feb 06, 1990
  13. 1
    Not Available Aired on Jan 09, 1990
  1. 11
    Not Available Aired on Apr 05, 1988
  2. 8
    Not Available Aired on Mar 15, 1988
  3. 7
    Not Available Aired on Mar 08, 1988
  4. 6
    Not Available Aired on Mar 01, 1988
  5. 5
    Not Available Aired on Feb 23, 1988
  6. 4
    Not Available Aired on Feb 09, 1988
  7. 3
    Not Available Aired on Feb 02, 1988
  8. 2
    Not Available Aired on Jan 26, 1988
  9. 1
    Not Available Aired on Jan 19, 1988
  1. 21
    Not Available Aired on Dec 15, 1987
  2. 20
    Not Available Aired on Dec 08, 1987
  3. 19
    Not Available Aired on Dec 01, 1987
  4. 18
    Not Available Aired on Nov 17, 1987
  5. 17
    Not Available Aired on Nov 10, 1987
  6. 16
    Not Available Aired on Nov 03, 1987
  7. 14
    Not Available Aired on Oct 20, 1987
  8. 13
    Not Available Aired on Oct 13, 1987
  9. 12
    Not Available Aired on Oct 06, 1987
  10. 11
    Not Available Aired on Apr 07, 1987
  11. 8
    Not Available Aired on Mar 10, 1987
  12. 7
    Not Available Aired on Mar 03, 1987
  13. 6
    Not Available Aired on Feb 24, 1987
  14. 5
    Not Available Aired on Feb 17, 1987
  15. 4
    Not Available Aired on Feb 10, 1987
  16. 3
    Not Available Aired on Feb 03, 1987
  17. 1
    Not Available Aired on Jan 20, 1987
  1. 20
    Not Available Aired on Dec 16, 1986
  2. 19
    Not Available Aired on Dec 09, 1986
  3. 18
    Not Available Aired on Dec 02, 1986
  4. 17
    Not Available Aired on Nov 25, 1986
  5. 16
    Not Available Aired on Nov 18, 1986
  6. 15
    Not Available Aired on Nov 11, 1986
  7. 14
    Not Available Aired on Nov 04, 1986
  8. 13
    Not Available Aired on Oct 21, 1986
  9. 12
    Not Available Aired on Oct 14, 1986
  10. 11
    Not Available Aired on Apr 22, 1986
  11. 10
    Not Available Aired on Mar 25, 1986
  12. 9
    Not Available Aired on Mar 18, 1986
  13. 8
    Not Available Aired on Mar 11, 1986
  14. 6
    Not Available Aired on Feb 25, 1986
  15. 5
    Not Available Aired on Feb 18, 1986
  16. 4
    Not Available Aired on Feb 11, 1986
  17. 3
    Not Available Aired on Feb 04, 1986
  18. 2
    Not Available Aired on Jan 28, 1986
  19. 1
    Not Available Aired on Jan 21, 1986
  1. 20
    Not Available Aired on Dec 17, 1985
  2. 19
    Not Available Aired on Dec 03, 1985
  3. 18
    Not Available Aired on Nov 26, 1985
  4. 17
    Not Available Aired on Nov 19, 1985
  5. 16
    Not Available Aired on Nov 12, 1985
  6. 15
    Not Available Aired on Nov 05, 1985
  7. 14
    Not Available Aired on Oct 29, 1985
  8. 13
    Not Available Aired on Oct 22, 1985
  9. 12
    Not Available Aired on Oct 15, 1985
  10. 11
    Not Available Aired on Oct 08, 1985
  11. 10
    Not Available Aired on Mar 19, 1985
  12. 9
    Not Available Aired on Mar 12, 1985
  13. 8
    Not Available Aired on Mar 05, 1985
  14. 7
    Not Available Aired on Feb 26, 1985
  15. 6
    Not Available Aired on Feb 19, 1985
  16. 5
    Not Available Aired on Feb 12, 1985
  17. 4
    Not Available Aired on Feb 05, 1985
  18. 3
    Not Available Aired on Jan 29, 1985
  19. 2
    Not Available Aired on Jan 22, 1985
  20. 1
    Not Available Aired on Jan 15, 1985
  1. 20
    Not Available Aired on Jan 08, 1985
  2. 18
    Not Available Aired on Dec 11, 1984
  3. 17
    Not Available Aired on Dec 04, 1984
  4. 16
    Not Available Aired on Nov 27, 1984
  5. 15
    Not Available Aired on Nov 20, 1984
  6. 13
    Not Available Aired on Nov 06, 1984
  7. 12
    Not Available Aired on Oct 30, 1984
  8. 11
    Not Available Aired on Oct 23, 1984
  9. 10
    Not Available Aired on Oct 16, 1984
  10. 9
    Not Available Aired on Oct 02, 1984
  11. 8
    Not Available Aired on Apr 03, 1984
  12. 7
    Not Available Aired on Mar 27, 1984
  13. 6
    Not Available Aired on Mar 20, 1984
  14. 5
    Not Available Aired on Mar 06, 1984
  15. 4
    Not Available Aired on Feb 28, 1984
  16. 2
    Not Available Aired on Jan 31, 1984
  17. 1
    Not Available Aired on Jan 17, 1984
  1. 21
    Not Available Aired on Jan 10, 1984
  2. 20
    Not Available Aired on Dec 27, 1983
  3. 19
    Not Available Aired on Dec 20, 1983
  4. 18
    Not Available Aired on Dec 13, 1983
  5. 17
    Not Available Aired on Dec 06, 1983
  6. 16
    Not Available Aired on Nov 29, 1983
  7. 15
    Not Available Aired on Nov 22, 1983
  8. 13
    Not Available Aired on Nov 08, 1983
  9. 12
    Not Available Aired on Nov 01, 1983
  10. 11
    Not Available Aired on Oct 25, 1983
  11. 10
    Not Available Aired on Oct 18, 1983
  12. 9
    Not Available Aired on Oct 11, 1983
  13. 8
    Not Available Aired on Mar 29, 1983
  14. 7
    Not Available Aired on Mar 22, 1983
  15. 6
    Not Available Aired on Mar 08, 1983
  16. 5
    Not Available Aired on Mar 01, 1983
  17. 4
    Not Available Aired on Feb 15, 1983
  18. 3
    Not Available Aired on Feb 08, 1983
  19. 2
    Not Available Aired on Jan 25, 1983
  20. 1
    Not Available Aired on Jan 18, 1983
  1. 18
    Not Available Aired on Dec 14, 1982
  2. 17
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Watch NOVA season 44 episode 6 (S44E06)

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Gold, bronze, iron, steel... metals are pillars of our civilization, but what makes them so special? Discover their unique properties and explore how our mastery of metals has led us from the stone age to today's hi-tech world.

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Gemstones like diamonds, rubies, opal and jade are the ultimate treasures. Delve into Earth's depths to discover how these precious stones are forged and what explains the unique allure of each captivating gemstone.

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How the science of learning may change education for all children.

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From 9/11 to today’s crowd-sourced violence, trace how terrorists’ strategies have evolved.

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Engineers and World War II historians investigate Hitler's fearsome bank of "superguns."

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Engineers race to rescue the Gay Head Lighthouse on Martha's Vineyard from the ocean's erosion.

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Explore how newly established wildlife corridors offer hope to endangered species.

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Uncover the truth behind the legendary Vikings and their epic journey to the Americas.

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On a summer’s night, there’s nothing more magic than watching the soft glow of fireflies switching on and off. Few other life forms on land can light up the night, but in the dark depths of the oceans, it’s a different story: nearly 90% of all species shine from within. Whether it’s to scare off predators, fish for prey, or lure a mate, the language of light is everywhere in the ocean depths, and scientists are finally starting to decode it. NOVA and National Geographic take a dazzling dive to this hidden undersea world where most creatures flash, sparkle, shimmer, or simply glow. Join deep sea scientists who investigate these stunning displays and discover surprising ways to harness nature’s light—from tracking cancer cells to detecting pollution, lighting up cities, and even illuminating the inner workings of our brains.

Watch NOVA season 43 episode 12 (S43E12)

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Tiny, transparent, and threatened, krill are crucial to the Antarctic ecosystem. But the population of krill is crashing for reasons that continue to baffle the experts. A leading theory says that krill’s life cycle is driven by an internal body clock that responds to the waxing and waning of the Antarctic ice pack, and as climate change alters the timing of the ice pack, their life cycle is disrupted. To test it, NOVA travels on the Polarstern, a state-of-the-art research vessel, to the frigid ice pack in the dead of winter. From camps established on the ice, scientists dive beneath the surface in search of the ice caves that shelter juvenile krill during the winter. There, they hope to discover what’s causing the krill to vanish and, ultimately, how the shifting seasons caused by climate change could disrupt ecosystems around the world.

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On November 25th, 1915, Einstein published his greatest work: general relativity. The theory transformed our understanding of nature’s laws and the entire history of the cosmos, reaching back to the origin of time itself. Now, in celebration of the 100th anniversary of Einstein’s achievement, NOVA tells the inside story of Einstein’s masterpiece. The story begins with the intuitive thought experiments that set Einstein off on his quest and traces the revolution in cosmology that is still playing out in today’s labs and observatories. Discover the simple but powerful ideas at the heart of relativity, illuminating the theory—and Einstein’s brilliance—as never before. From the first spark of an idea to the discovery of the expanding universe, the Big Bang, black holes, and dark energy, NOVA uncovers the inspired insights and brilliant breakthroughs of “the perfect theory.”

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The history of North America since the arrival of humans is chronicled. Natural resources, including gold and oil, have enabled humans to transform the land almost as much as the geological forces that created it. However, geology may, some day, play another role in reshaping the continent: the Cascadia fault line in the Pacific Northwest could unleash a massive earthquake and tsunami; and the super-volcano beneath Yellowstone could obliterate half the continent if it erupts.

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How did life emerge on our primeval continent? Why was North America home to so many iconic dinosaurs like T. rex? And how did a huge sea filled with giant marine reptiles end up covering Kansas? We tell the surprising intertwined story of life and the landscape in North America.

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The epic 3 billion-year story of how our continent came to be. From the palm trees that once flourished in Alaska to titanic eruptions that nearly tore the Midwest in two, discover how forces of almost unimaginable power gave birth to North America.

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NOVA presents an exclusive breakthrough in the greatest unsolved mystery in Arctic exploration. In 1845, British explorer Sir John Franklin set off to chart the elusive Northwest Passage, commanding 128 men in two robust and well-stocked Royal Navy ships, the Erebus and Terror.  They were never heard from again.  Eventually, searchers found tantalising clues to their fate: a hastily written note left on an island, exhumed bodies suggesting lead poisoning, discarded human bones with marks of cannibalism and Inuit legends of ghost ships.  But no trace of the ships was ever found. Then, in 2014, after seven years of searching, an official Parks Canada expedition finally located the Erebus, intact and upright on the sea floor. With exclusive access, NOVA tells the inside story of the risky Canadian expedition, which involved constant battles with crushing sea ice, bad weather, and disappointing dead ends. Culminating in the historic discovery of the Erebus, NOVA tells the gripping story of the ill-fated expedition and reveals exclusive new clues from the sea floor that may finally unravel what happened to Franklin’s men more than 160 years ago.

Watch NOVA season 43 episode 1 (S43E01)

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NOVA and National Geographic present exclusive access to a unique discovery of ancient remains. Located in an almost inaccessible chamber deep in a South African cave, the site required recruiting a special team of experts slender enough to wriggle down a vertical, pitch-dark, seven-inch-wide passage. Most fossil discoveries of human relatives consist of just a handful of bones. But down in this hidden chamber, the team uncovered an unprecedented trove—so far, over 1,500 bones—with the potential to rewrite the story of our origins. They may help fill in a crucial gap in the fossil record and tell us how Homo, the first member of the human family, emerged from ape-like ancestors like the famous Lucy. But how did hundreds of bones end up in the remote chamber? The experts are considering every mind-boggling possibility. Join NOVA on the treacherous descent into this cave of spectacular and enigmatic finds, and discover their startling implications for the saga of what made us human.

Watch NOVA season 42 episode 22 (S42E22)

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NOVA reveals the minute-by-minute story of the Fukushima nuclear crisis—the one you know about, and the one you likely don’t: the perilously close call at the other Fukushima nuclear power plant a few miles away from the meltdowns. With unprecedented access inside both Fukushima nuclear power plants, NOVA speaks with workers who were there during the harrowing days—a crisis that began as a natural a disaster but was made worse by human beings. But why did the worst happen at one plant while another that faced nearly identical challenges emerged unscathed? It may come down to the skill and knowledge of one man, who has worked there since they started construction. These are crucial questions as the company that runs both plants, TEPCO, tries to clean up an unprecedented radioactive mess and seeks to reopen the plant that was just barely saved.

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On July 14, 2015, the New Horizons spacecraft, one of the most advanced ever built, is scheduled to fly by Pluto to take the very first detailed images of the dwarf planet. After nine years and 3 billion miles, we will finally get a close look at this strange, icy world, but only if the craft can survive the final, treacherous leg of its journey, which could take it through a dangerous field of debris. If it does, New Horizons is poised to make dramatic new discoveries, not just about Pluto, but about the vast realm of icy bodies lurking beyond Neptune, relics of the earliest days of the solar system’s formation. Back on Earth, the planetary scientists who have spent decades working on this mission anxiously await a signal from their spacecraft. Our cameras will be there to witness the moment. If all goes well, we’ll see Pluto’s mysterious surface in unprecedented detail and learn new secrets about other alien worlds at the far limits of our solar system.

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Sharply rising carbon emissions are entering Earth's seas at a staggering rate, raising their acidity. Learn how scientists are researching the effects and looking for solutions.

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Long before 9/11, a far deadlier, little-known attack from the ocean depths struck our shores, lasting three-and-a-half years and claiming 5,000 lives. Now, famed undersea explorer Bob Ballard, discoverer of the Titanic, investigates the wreck of one of the attack craft, a German submarine that lies at the bottom of the gulf just a few miles off New Orleans. U-166 was part of Operation Drumbeat, a highly successful U-boat operation that caught East Coast cities and shipping almost completely unprepared. Ballard probes the wreck and unravels a dramatic mystery in the official story of the sub's sinking.

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Twenty-five years ago, NASA launched one of the most ambitious experiments in the history of astronomy: the Hubble Space Telescope. In honor of Hubble's landmark anniversary, NOVA tells the remarkable story of the telescope that forever changed our understanding of the cosmos. But Hubble's early days nearly doomed it to failure: a one-millimeter engineering blunder had turned the billion-dollar telescope into an object of ridicule. It fell to five heroic astronauts in a daring mission to return Hubble to the cutting edge of science. This single telescope has helped astronomers pinpoint the age of the universe, revealed the birthplace of stars and planets, advanced our understanding of dark energy and cosmic expansion, and uncovered black holes lurking at the heart of galaxies. Join NOVA for the story of this magnificent machine and its astonishing discoveries.

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Recounting the daring experiment now underway to uncover how the ancient metropolis was built. More than 2,000 years ago, the thriving city of Petra rose up in the bone-dry desert of what is now Jordan. An oasis of culture and abundance, the city was built by wealthy merchants whose camel caravans transported incense and spices from the Arabian Gulf. They carved spectacular temple-tombs into its soaring cliffs, raised a monumental Great Temple at its heart, and devised an ingenious system that channeled water to vineyards, bathhouses, fountains, and pools. But following a catastrophic earthquake and a slump in its desert trade routes, Petra's unique culture faded and was lost to most of the world for nearly a thousand years. Now, in a daring experiment, an archaeologist and sculptors team up to carve an iconic temple-tomb to find out how the ancient people of Petra built their city of stone. Meanwhile, scientists using remote sensors and hydraulic flumes uncover the vast city and its sophisticated water system. The race is on to discover how these nomads created this oasis of culture in one of the harshest climates on Earth.

Watch NOVA season 42 episode 11 (S42E11)

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On July 4, 2012, scientists at the giant atom smashing facility at CERN announced the discovery of a subatomic particle that seems like a tantalizingly close match to the elusive Higgs Boson, thought to be responsible for giving all the stuff in the universe its mass. Since it was first proposed nearly fifty years ago, the Higgs has been the holy grail of particle physicists: in finding it they validate the "standard model" that underlies all of modern physics and open the door to new discoveries when CERN's giant collider switches on at higher power in 2015.

Watch NOVA season 42 episode 10 (S42E10)

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When Neil Armstrong set foot on the moon, he won instant fame. Yet this accomplished engineer and test pilot was so determined to stay out of the limelight that few know the personal story of how his rare combination of talent, luck and experience led to his successful command of Apollo 11. NOVA presents an intimate portrait of an unassuming American hero through interviews with Armstrong’s family and friends.

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To defend himself in the afterlife, the First Emperor of China, Qin Shi Huang, was buried in a vast mausoleum accompanied by around 9,000 life-sized terracotta statues. With exclusive access to groundbreaking new research, NOVA investigates the secrets of how and why the astonishing figures were made and the technology behind the still lethal and highly-advanced crossbows, spears, and swords carried by the clay warriors.

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Follow the paleontologists who are reconstructing this terrifying carnivore, a 53-foot-long behemoth with a huge dorsal sail, scimitar-like claws and superjaws. Bringing together experts in paleontology, geology, climatology and paleobotany, this special brings to life the lost world over which Spinosaurus reigned more than 65 million years ago.

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NOVA tells the inside story of the search for Flight MH370 and meets the key players, from all corners of the globe, who have spent months searching for the lost plane. How easy is it to make a plane disappear? Or can new technology guarantee that in the future, nothing will ever be "lost" again?

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Diseases that were largely eradicated in the United States a generation ago—whooping cough, measles, mumps—are returning, in part because nervous parents are skipping their children’s shots. NOVA’s “Vaccines—Calling the Shots" takes viewers around the world to track epidemics, explore the science behind vaccinations, hear from parents wrestling with vaccine-related questions, and shed light on the risks of opting out.

Watch NOVA season 40 episode 20 (S40E20)

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On May 20, 2013, a ferocious EF5 tornado over a mile wide tore through Moore, Oklahoma, inflicting 24 deaths and obliterating entire neighborhoods. It was the third time an exceptionally violent tornado had struck the city in 14 years. Yet predicting when and where these killer storms will hit still poses a huge challenge. Why was 2011—the worst ever recorded tornado season that left 158 dead in Joplin, Missouri—followed by the quietest ever year of activity prior to the Moore disaster? Can improved radar and warning technology explain why so many fewer died in Moore than in Joplin? And will tornadoes get worse as Earth's climate heats up? In this NOVA special, we meet scientists in the front ranks of the battle to understand these extreme weather events. We also meet storm survivors whose lives have been upended and learn how we can protect ourselves and our communities for the uncertain future.

Watch NOVA season 40 episode 18 (S40E18)

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In the wake of the catastrophic asteroid impact believed to have wiped out the dinosaurs, Australia was set adrift on a lonely voyage across southern seas. With host Richard Smith, NOVA travels the walkabout continent to uncover how it became the strange land it is today. In this final episode, "Strange Creatures," NOVA traces the last 65 million years, revealing the events that shaped the Australia we know today. Prehistoric jungles retreated, replaced by eucalypt forests, grasslands, and deserts. When humans first arrived, giant marsupials dominated the land and the Great Barrier Reef was yet to form. This is a tale of calamity and conquest; how a conspiracy of climate, biology, and geology shaped the Earth we now call home.

Watch NOVA season 40 episode 17 (S40E17)

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"Monsters" begins Down Under at the dawn of the Age of Dinosaurs. Host Richard Smith comes face-to-face with the previously unknown reptilian rulers of prehistoric Australia. NOVA resurrects the giants that stalked the Great Southern Land and discovers that some of these animals were among the largest ever to have walked the Earth. Others were some of the most dangerous. In the dry desert heart, scientists unearth an ancient inland ocean full of sea monsters. Opal fossils of some of these beasts paint a colorful picture of the exotic seascape, where long-necked plesiosaurs snacked on shelled creatures that grew as large as truck tires. The most fearsome was Kronosaurus, with a skull twice as long as T. rex. But reptiles didn't have the world all to themselves. Mammals like the enigmatic platypus lived alongside them, ready for their moment in the sun.

Watch NOVA season 40 episode 15 (S40E15)

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Hidden in the red hills of western Australia are clues to the mysteries of when the Earth was born, how life first arose, and how it transformed the planet.

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On February 15, 2013, a 7,000-ton asteroid crashed into the Earth's atmosphere over Russia with the power of 30 Hiroshima bombs. Within days, NOVA crews joined impact scientists in Russia as they hunted for clues about the meteor's origin and makeup.

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What makes a person walk into a theater or a church or a classroom full of students and open fire? What combination of circumstances compels a human being to commit the most inhuman of crimes? Can science in any way help us understand these horrific events and provide any clues as to how to prevent them in the future? As the nation tries to understand the tragic events at Newtown, NOVA correspondent Miles O’Brien separates fact from fiction, investigating new theories that the most destructive rampage killers are driven most of all, not by the urge to kill, but the wish to die. Could suicide–and the desire to go out in a media-fueled blaze of glory–be the main motivation? How much can science tell us about the violent brain? Most importantly, can we recognize dangerous minds in time—and stop the next Newtown?

Watch NOVA season 40 episode 10 (S40E10)

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3,600-year-old reliefs in Egyptian tombs and temples depict pharaohs and warriors proudly riding into battle on horse-drawn chariots. Some historians claim that the chariot launched a technological and strategic revolution, and was the secret weapon behind Egypt's greatest era of conquest known as the New Kingdom. But was the Egyptian chariot really a revolutionary design? How decisive a role did it play in the bloody battles of the ancient world? In "Building Pharaoh's Chariot," a team of archaeologists, engineers, woodworkers, and horse trainers join forces to build and test two highly accurate replicas of Egyptian royal chariots. They discover astonishingly advanced features, including spoked wheels, springs, shock absorbers, anti-roll bars, and even a convex-shaped rear mirror, leading one of them to compare the level of design to the engineering standards of 1930's-era Buicks! By driving our pair of replicas to their limits in the desert outside Cairo, NOVA's experts test the claim that the chariot marks a crucial turning point in ancient military history.

Watch NOVA season 40 episode 8 (S40E08)

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Drones. These unmanned flying robots–some as large as jumbo jets, others as small as birds–do things straight out of science fiction. Much of what it takes to get these robotic airplanes to fly, sense, and kill has remained secret. But now, with rare access to drone engineers and those who fly them for the U.S. military, NOVA reveals the amazing technologies that make drones so powerful as we see how a remotely-piloted drone strike looks and feels from inside the command center. From cameras that can capture every detail of an entire city at a glance to swarming robots that can make decisions on their own to giant air frames that can stay aloft for days on end, drones are changing our relationship to war, surveillance, and each other. And it's just the beginning. Discover the cutting edge technologies that are propelling us toward a new chapter in aviation history as NOVA gets ready for "Rise of the Drones.

Watch NOVA season 40 episode 7 (S40E07)

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Examining evidence about Neanderthals that sheds light on the hominids, which died off some 30,000 years ago. Included: geneticist Svante PÀÀbo's 2010 reconstruction of the Neanderthal genome, which posits that modern humans and Neanderthals interbred at some point in the distant past.

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In April, 2010 the eruption of Iceland's Eyjafjallajökull volcano turned much of Europe into an ash-strewn no-fly zone, stranding millions of travelers. But was Eyjafjallajökull just the start? Now, an even more threatening Icelandic volcano, Katla, has begun to swell and grumble. Two more giants, Hekla and Laki, could erupt without warning. Iceland is a ticking time bomb: When it blows, the consequences could be global. As CGI takes us inside these geological monsters, we meet atmospheric scientists who are working to understand just how devastating an eruption could be—not just for air travel but for the global food supply and for Earth's climate.

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Was Hurricane Sandy a freak combination of weather systems? Or are hurricanes increasing in intensity due to a warming climate? How did this perfect storm make search and rescue so dangerous? "Inside the Megastorm" takes viewers moment by moment through Hurricane Sandy, its impacts, and the future of storm protection. Through first person accounts from those who survived, and from experts and scientists, "Inside the Megastorm" gives scientific context to a new breed of storms.

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Why go back to Mars? Far from dead, Mars holds untold potential. Nearly half a century of Mars exploration has yielded tantalizing clues that Mars may once have harbored life—and may harbor it still. The extraordinary landing of a revolutionary rover named Curiosity—which successfully touched down inside the Gale Crater—means we have wheels down on the planet once again, in the form of the most sophisticated robot ever to rove the Mars surface. Will NASA's bold mission and this marvel of technology answer some of our biggest questions and usher in a new golden age of exploration? NOVA goes behind the scenes on NASA’s quest to solve the riddles of the red planet.

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A remote, bleak speck of rock in the middle of the Pacific, Easter Island, or Rapa Nui, has mystified the world ever since the first Europeans arrived in 1722. How and why did the ancient islanders build and move nearly 900 giant statues or moai, weighing up to 86 tons? And how did they transform a presumed paradise into a treeless wasteland, bringing ruin upon their island and themselves? NOVA explores controversial recent claims that challenge decades of previous thinking about the islanders, who have been accused of everything from ecocide to cannibalism. Among the radical new theories is that the islanders used ropes to "walk" the statues upright, like moving a fridge. With the help of an accurate 15-ton replica statue, a NOVA team sets out to test this high-risk, seemingly unlikely theory—serving up plenty of action and surprises in this fresh investigation of one of the ancient world's most intriguing enigmas.

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There is a startling gap between the glamorous television world of “CSI” and the gritty reality of the forensic crime lab. With few established scientific standards, no central oversight, and poor regulation of examiners, forensics in the U.S. is in a state of crisis. In "Forensics on Trial", NOVA investigates how modern forensics, including the analysis of fingerprints, bite marks, ballistics, hair, and tool marks, can send innocent men and women to prison—and sometimes even to death row. Shockingly, of more than 250 inmates exonerated by DNA testing over the last decade, more than 50 percent of the wrongful convictions stemmed from invalid or improperly handled forensic science. With the help of vivid recreations of actual trials and cases, NOVA will investigate today’s shaky state of crime science as well as cutting-edge solutions that could help investigators put the real criminals behind bars.

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The Vikings were among the fiercest warriors of all time. Yet only a select few carried the ultimate weapon of their era: the feared Ulfberht sword. Fashioned using a process that would remain unknown to the Vikings’ rivals for centuries, the Ulfberht was a revolutionary high-tech tool as well as a work of art. Considered one of the greatest swords ever made, it remains a fearsome weapon more than a millennium after it last saw battle. But how did Viking sword makers design and build the Ulfberht, and what was its role in history? Now, NOVA uses cutting edge science and old-fashioned detective work to reconstruct the Ulfberht and finally unravel the "Secrets of the Viking Sword."

Watch NOVA season 39 episode 18 (S39E18)

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Twenty million passengers embark on cruises each year, vacationing in deluxe "floating cities" that offer everything from swimming pools to shopping malls to ice skating rinks. And the ships just keep getting bigger: The average cruise ship has doubled in size in just the last ten years. Some engineers fear that these towering behemoths are dangerously unstable, and the recent tragedy of the Costa Concordia has raised new questions about their safety. Now, NOVA brings together marine engineering and safety experts to reconstruct the events that led up to famous cruise disasters, including the ill-fated Concordia, the Sea Diamond, and the Oceans.

Watch NOVA season 39 episode 17 (S39E17)

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In April 2011, the worst tornado outbreak in decades left a trail of destruction across the U.S., killing more than 360 people. Why was there such an extreme outbreak? How do such outbreaks form? With modern warning systems, why did so many die? Is our weather getting more extreme—and, if so, how bad will it get? In this NOVA special, we meet scientists striving to understand the forces at work behind last year's outbreak. Could their work improve tornado prediction in the future? We also meet people whose lives have been upended by these extreme weather events and learn how we all can protect ourselves and our communities for the future.

Watch NOVA season 39 episode 16 (S39E16)

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Where do nature’s building blocks, called the elements, come from? They’re the hidden ingredients of everything in our world, from the carbon in our bodies to the metals in our smartphones. To unlock their secrets, David Pogue, the lively host of NOVA’s popular "Making Stuff" series and technology correspondent of The New York Times, spins viewers through the world of weird, extreme chemistry: the strongest acids, the deadliest poisons, the universe’s most abundant elements, and the rarest of the rare—substances cooked up in atom smashers that flicker into existence for only fractions of a second.

Watch NOVA season 39 episode 15 (S39E15)

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What will it mean when most of us can afford to have the information in our DNA—all three billion chemical letters of it—read, stored, and available for analysis? In "Cracking Your Genetic Code," NOVA reveals that we stand on the verge of a revolution. We meet cancer patients returned to robust health and a cystic fibrosis sufferer breathing easily because scientists have been able to pinpoint and neutralize the genetic abnormalities underlying their conditions. What are the moral dilemmas raised by the new technology? Will it help or hurt us to know our genetic destiny? What if such information falls into the hands of insurance companies, employers, and prospective mates? One thing is for certain: The new era of personalized, gene-based medicine is relevant to everyone. Soon, all of us may be deciding whether to join the ranks of the DNA generation.

Watch NOVA season 39 episode 14 (S39E14)

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This is the incredible story of Trishna and Krishna, twin girls born joined at the head. Abandoned shortly after birth at an orphanage in Bangladesh, they had little chance of survival, until they were saved and taken to Australia by an aid worker. After two years battling for life, the twins are ready for a series of delicate operations that will prepare them for the ultimate challenge: a marathon separation surgery that will allow them to live truly separate lives. Since the beginning, surgeons knew there was no guarantee of survival for either of the girls—but without surgery there was no hope at all. With exclusive access to this extraordinary human and medical drama, our cameras have been with Trishna and Krishna and their caregivers at each moment of their journey.

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In a race against developers in the Rocky Mountains, archeologists uncover a unique fossil site packed with astonishingly well-preserved bones of mammoths, mastodons, and other giant extinct beasts. The discovery opens a highly focused window on the vanished world of the Ice Age in North America.

Watch NOVA season 39 episode 12 (S39E12)

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In October 2007, a striking portrait of a young woman in Renaissance dress made world news headlines. Originally sold nine years before for around $20,000, the portrait is now thought to be an undiscovered masterwork by Leonardo da Vinci worth more than $100 million. How did cutting-edge imaging analysis help tie the portrait to Leonardo? NOVA meets a new breed of experts who are approaching "cold case" art mysteries as if they were crime scenes, determined to discover "who committed the art." And it follows art sleuths as they deploy new techniques to combat the multibillion-dollar criminal market in stolen and fraudulent art.

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During World War II, Hitler’s scientists developed terrifying new weapons of mass destruction. Alarmed by rumors of advanced rockets and missiles, Allied intelligence recruited a team of brilliant minds from British universities and Hollywood studios to a country house near London. Here, they secretly pored over millions of air photos shot at great risk over German territory by specially converted, high-flying Spitfires. Peering at the photos through 3D stereoscopes, the team spotted telltale clues that revealed hidden Nazi rocket bases. The photos led to devastating Allied bombing raids that dealt crucial setbacks to the German rocket program and helped ensure the success of the D-Day landings. With 3D graphics that recreate exactly what the photo spies saw, NOVA tells the suspenseful, previously untold story of air photo intelligence that played a vital role in defeating the Nazis.

Watch NOVA season 39 episode 9 (S39E09)

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Millions of people around the world live in the shadow of active volcanoes. Under constant threat of massive volcanic eruptions, their homes and their lives are daily at risk from these sleeping giants. From Japan’s Mount Fuji to the "Sleeping Giant" submerged beneath Naples to the Yellowstone "supervolcano" in the United States, we will travel with scientists from around the world who are at work on these sites, attempting to discover how likely these volcanoes are to erupt, when it might happen, and exactly how deadly they could prove to be.

Watch NOVA season 39 episode 8 (S39E08)

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Hard as it is to swallow, cutting-edge theories are suggesting that our universe may not be the only universe. Instead, it may be just one of an infinite number of worlds that make up the multiverse. In this show, Brian Greene takes us on a tour of this brave new theory at the frontier of physics, explaining why scientists believe it's true and showing what some of these alternate realities might be like. Some universes may be almost indistinguishable from our own; others may contain variations of all of us, where we exist but with different families, careers, and life stories. In still others, reality may be so radically different from ours as to be unrecognizable. Brian Greene reveals why this radical new picture of the cosmos is getting serious attention from scientists. It won't be easy to prove, but if it's right, our understanding of space, time, and our place in the universe will never be the same.

Watch NOVA season 39 episode 4 (S39E04)

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He’s been dead for more than 5,000 years and poked, prodded, and probed by scientists for the last 20. Yet Ötzi the Iceman, the famous mummified corpse pulled from a glacier in the Italian Alps, continues to keep many secrets. Now, through an autopsy like none other, scientists will attempt to unravel mysteries about this ancient mummy, revealing not only the details of Ötzi’s death but also an entire way of life. How did people live during Ötzi’s time, the Copper Age? What did they eat? What diseases did they cope with? Join NOVA as we defrost the ultimate time capsule—the 5,000-year-old man

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Take a spectacular trip to distant realms of our solar system to discover where secret forms of life may lie hidden. Combining the latest telescope images with dazzling animation, this program immerses audiences in the sights and sounds of alien worlds, while top astrobiologists explain how these places are changing how we think about the potential for life in our solar system. We used to think our neighboring planets and moons were fairly boring—mostly cold, dead rocks where life could never take hold. Today, however, the solar system looks wilder than we ever imagined.

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The earthquake that hit the northern coast of Japan on March 11, 2011, was recorded at magnitude 9.0 the worst ever recorded in Japan. It generated an unprecedented tsunami, obliterating coastal villages and towns in a matter of minutes. In some areas, the tsunami climbed above 100 feet in height and traveled miles inland. Amazingly, amateur and professional photographers captured it all on video, including remarkable tales of human survival, as ordinary citizens became heroes in a drama they never could have imagined. As the waves rush in, a daughter struggles to help her elderly mother ascend their rooftop to safety; a man climbs onto an overpass just as the wave overtakes his car. These never-before-seen stories are captured in video and retold after the fact by the survivors who reveal what they were thinking as they made their life-saving decisions. Their stories provide lessons for how we should all act in the face of life-threatening disasters.

Watch NOVA season 39 episode 1 (S39E01)

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To commemorate the 10th anniversary of 9/11, NOVA presents an epic story of engineering, innovation, and the perseverance of the human spirit. With extraordinary access granted by The Port Authority of New York and New Jersey, “Engineering Ground Zero” follows the five-year construction of One World Trade Center (1 WTC) and the National September 11 Memorial & Museum.

Watch NOVA season 38 episode 18 (S38E18)

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Would you care to match wits with a dog, an octopus, a dolphin, or a parrot? You may think twice after watching the segments in this NOVA scienceNOW episode. While we may not be ready to send pets to Harvard, the remarkable footage and findings presented here demonstrate that many animal species are much smarter than we assume and in ways we had never imagined.

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Can emerging technology defeat global warming? The United States has invested tens of billions of dollars in clean energy projects as our leaders try to save our crumbling economy and our poisoned planet in one bold, green stroke. Are we finally on the brink of a green-energy "power surge," or is it all a case of too little, too late? From solar panel factories in China to a carbon capture-and-storage facility in the Sahara desert to massive wind and solar installations in the United States, NOVA travels the globe to reveal the surprising technologies that just might turn back the clock on climate change. NOVA will focus on the latest and greatest innovations, including everything from artificial trees to green reboots of familiar technologies like coal and nuclear energy. Can our technology, which helped create this problem, now solve it?

Watch NOVA season 38 episode 16 (S38E16)

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In its worst crisis since World War II, Japan faces disaster on an epic scale: a death toll likely in the tens of thousands, massive destruction of homes and businesses, shortages of water and power, and the specter of nuclear meltdown. With exclusive footage, NOVA captures the unfolding human drama and offers a clear-headed investigation of what triggered the earthquake, tsunami, and subsequent nuclear crisis. Can science and technology ever prevent devastation in the face of overwhelmingly powerful forces of nature?

Watch NOVA season 38 episode 15 (S38E15)

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Over the millennia, thousands of creatures have developed that most sophisticated of biological and chemical weapons: venom. These complex chemicals can scramble your brain signals, paralyze your muscles, puncture your blood cells, even begin digesting you from within. But nature's most potent toxins might also contain the keys to a new generation of advanced drugs. Such drugs might help doctors treat heart attacks, cancer, diabetes, and other serious illnesses. Follow NOVA crews as they join scientists on a dangerous quest to track down and capture the world's most venomous animals - to find out both how they can kill us, and how they can save us.

Watch NOVA season 38 episode 14 (S38E14)

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On June 1, 2009, Flight AF447, an Air France Airbus A330 flying from Rio de Janeiro to Paris, disappeared over the Atlantic Ocean with the loss of all 228 lives. How could a state-of-the-art airliner with elaborate electronic safety and navigation features and a faultless safety record simply fall out of the sky? NOVA assembles a team of seasoned pilots, engineers, and safety experts to examine the evidence that emerged in the weeks following this horrific disaster. What led Flight 447's crew to fly straight into a towering thunderstorm? With expert testimony, satellite weather images, and messages transmitted by the doomed plane's computer system, NOVA pieces together the fatal chain of events.

Watch NOVA season 38 episode 7 (S38E07)

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Almost three miles of ice buries most of Antarctica, cloaking a continent half again as large as the United States. But when an Antarctic ice shelf the size of Manhattan collapsed in less than a month in 2002, it shocked scientists and raised the alarming possibility that Antarctica may be headed for a meltdown. Even a ten percent loss of Antarctica's ice would cause catastrophic flooding of coastal cities unlike any seen before in human history. What are the chances of a widespread melt? "Secrets Beneath the Ice" explores whether Antarctica's climate past can offer clues to what may happen. NOVA follows a state-of-the-art expedition that is drilling three-quarters of a mile into the Antarctic seafloor. The drill is recovering rock cores that reveal intimate details of climate and fauna from a time in the distant past when the Earth was just a few degrees warmer than it is today. As researchers grapple with the harshest conditions on the planet, they discover astonishing new clues about Antarctica's past—clues that carry ominous implications for coastal cities around the globe.

Watch NOVA season 38 episode 6 (S38E06)

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Countless treasure-seekers have set off in search of King Solomon's mines, trekking through burning deserts and scaling the forbidding mountains of Africa and the Levant, inspired by the Bible's account of splendid temples and palaces adorned in glittering gold and copper. Yet to date, the evidence that has claimed to support the existence of Solomon and other early kings in the Bible has been highly controversial. In fact, so little physical evidence of the kings who ruled Israel and Edom has been found that many contend that they are no more real than King Arthur. In the summer of 2010, NOVA and National Geographic embarked on two cutting-edge field investigations that illuminate the legend of Solomon and reveal the source of the great wealth that powered the first mighty biblical kingdoms. These groundbreaking expeditions expose important new clues buried in the pockmarked desert of Jordan, including ancient remnants of an industrial-scale copper mine and a 3,000-year-old message with the words "slave," "king," and "judge."

Watch NOVA season 38 episode 4 (S38E04)

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"Dogs Decoded" reveals the science behind the remarkable bond between humans and their dogs and investigates new discoveries in genetics that are illuminating the origin of dogs—with surprising implications for the evolution of human culture. Other research is proving what dog lovers have suspected all along: Dogs have an uncanny ability to read and respond to human emotions. Humans, in turn, respond to dogs with the same hormone responsible for bonding mothers to their babies. How did this incredible relationship between humans and dogs come to be? And how can dogs, so closely related to fearsome wild wolves, behave so differently?

Watch NOVA season 38 episode 3 (S38E03)

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A documentary examining the ubiquitous transportation device as used in modern day and features a recounting of a real-life horror story of one individual's experiences when stuck in an elevator for an extraordinarily long period of time.

Watch NOVA season 38 episode 1 (S38E01)

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Take a dazzling architectural journey inside those majestic marvels of Gothic architecture, the great cathedrals of Chartres, Beauvais and other European cities. Carved from 100 million pounds of stone, some cathedrals now teeter on the brink of catastrophic collapse. To save them, a team of engineers, architects, art historians, and computer scientists searches the naves, bays, and bell-towers for clues. NOVA investigates the architectural secrets that the cathedral builders used to erect their towering, glass-filled walls and reveals the hidden formulas drawn from the Bible that drove medieval builders ever upward.

Watch NOVA season 36 episode 17 (S36E17)

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An exploration of the effect of music on the brain via four case studies from neurologist Oliver Sacks book "Musicopia" and the MRI visualizations from Sacks' own brain as classical music is played, including Bach's "Mass in B Minor." Study subjects include a man with Tourettes syndrome who has found relief while playing the drums; an autistic savant who is simply dazzling on the piano; a woman who suffers the inability to process music, known as amusia; and a surgeon whose life changed after being struck by lightning.

Watch NOVA season 36 episode 16 (S36E16)

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In 1987, NOVA's cameras began rolling to chronicle the lives of seven young, bright medical students embarking on the longest and most rigorous endeavor in higher education: the years-long journey to become a doctor. From their first days at Harvard Medical School to the present day, none of them could have predicted what it would take, personally and professionally. In "Doctors' Diaries," a two-hour special, NOVA returns to find out what sorts of doctors—and people—the seven young students have become. The program is the latest installment in the longest-running U.S. documentary of its kind.

Watch NOVA season 36 episode 13 (S36E13)

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In collaboration with National Geographic, NOVA follows the exploits of acclaimed photojournalist James Balog and a scientific team as they deploy time-lapse cameras in risky, remote locations in the Alps and Arctic, including Alaska and Greenland. Grappling with blizzards, fickle technology, and climbs up craggy precipices, the team must anchor cameras capable of withstanding subzero temperatures and winds up to 170 miles per hour. In this high-action scientific adventure, NOVA and National Geographic investigate the mystery of the mighty ice sheets, whose still-unknown behavior will affect the fate of coastlines around the world.

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Once every 48 years, bamboo forests in parts of northeast India go into exuberant flower. Then, like clockwork, the flowering is invariably followed by a plague of black rats that appear to spring from nowhere to spread destruction and famine in their wake. For the first time on film, NOVA and National Geographic capture this rat population explosion in vivid detail and show how scientists are unraveling the connections between bamboo flowering and rat outbreaks. Ultimately, their research should help local people better cope with the next attack—due in 2056.

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Orange-and-black wings fill the sky as NOVA charts one of nature's most remarkable phenomena: the epic migration of monarch butterflies across North America. To capture a butterfly's point of view, NOVA’s filmmakers used a helicopter, ultralight, and hot-air balloon for aerial views along the transcontinental route. This wondrous annual migration, which scientists are just beginning to fathom, is an endangered phenomenon that could dwindle to insignificance if the giant firs that the butterflies cling to during the winter disappear.

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As Governor of California, Arnold Schwarzenegger launches a dramatic and controversial program to slash carbon dioxide emissions and promote energy efficiency. NOVA explores the pros and cons of California's bold approach, which calls for improvements in energy efficiency in homes and commercial buildings; increased reliance on renewable power sources, primarily solar and wind; and major upgrades in car mileage. Hear from Governor Schwarzenegger, skeptics and supporters of the plan, and ordinary citizens and businesspeople whose lives are impacted. Among those interviewed is Steven Chu, who went on to become the U.S. Energy Secretary in the Obama Administration.

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“The Bible’s Buried Secrets,” produced by Rhode Island-based Providence Pictures for PBS's science series Nova, attempts to uncover who wrote the Hebrew Bible and whether it’s history or parable, delving into the origins of the Israelites to explore their gradual transformation into a monotheistic people. The show also poses provocative ideas – including the “revelation” that many Israelites believed that God had a wife – and disputes literal readings of the text.

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Fractals are more than just pretty pictures. These simple but sophisticated equations describe the world we live in, from forest growth patterns to the beating of a human heart, and they are inspiring new investigation in myriad fields of science and technology.

Watch NOVA season 36 episode 3 (S36E03)

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Join Mark Everett on his quixotic quest to understand his father Hugh, creator of a radical theory of quantum physics.

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At the end of a nearly flawless 15-day mission in early 2003, the Space Shuttle Columbia disintegrated during reentry into Earth's atmosphere, killing the crew of seven men and women. In this documentary, NOVA probes the accident and the decisions stretching back four decades that made the tragedy almost inevitable. It offers a penetrating look at the history of the shuttle program and the political pressures that made the shuttle a highly complex engineering compromise, which fell short of its ambitious goal to make space travel routine, cheap, and safe.

Watch NOVA season 36 episode 1 (S36E01)

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Most people imagine dinosaurs lurking in warm locales with swamps and jungles, dining on vegetation and each other. But "Arctic Dinosaurs" reveals that many species also thrived in the harsh environments of the north and south polar regions. NOVA follows two high-stakes expeditions and the paleontologists who push the limits of science to unearth 70 million-year-old fossils buried in the vast Alaskan tundra.

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The recent archeological discovery of the Native American Powhatan village of Werowocomoco, sheds new light on the Jamestown story of Pocahontas.

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Scientists return to the jungles of Congo to further explore the peaceful lives of bonobos.

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The grandson of Alabama slaves, Percy Julian met with every possible barrier in a deeply segregated America. He was a man of genius, devotion, and determination. As a black man he was also an outsider, fighting to make a place for himself in a profession and country divided by bigotry—a man who would eventually find freedom in the laboratory. By the time of his death, Julian had risen to the highest levels of scientific and personal achievement, overcoming countless obstacles to become a world-class scientist, a self-made millionaire, and a civil-rights pioneer.

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Follow one man's dream to engeneer a submarine with panaramic views.

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Experts explore the mysterious story of five siblings living in a remote Turkish village.

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The flamboyant rise and tragic death of pioneering aviator Alberto-Santos Dumont.

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Astronomers are closing in on the proof they've sought for years that one of the most destructive objects in the universe—a supermassive black hole—lurks at the center of our own galaxy. Could it flare up and consume our entire galactic neighborhood? Join NOVA on a mind-bending investigation into one of the most bizarre corners of cosmological science: black hole research. From event horizon to singularity, the elusive secrets of supermassive black holes are revealed through stunning computer-generated imagery, including an extraordinary simulation of what it might look like to fall into the belly of such an all-devouring beast.

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On March 27, 1977, on the island of Tenerife, two fully loaded 747 jumbo jets collided on a fog-blanketed runway, claiming the lives of 583 people in what is still the deadliest crash in aviation history. Now, almost 30 years later, near misses on the ground are the leading cause of aviation accidents, raising the question of what can be done to improve runway safety. Featuring moving interviews with the few survivors of the disaster and with top accident investigators, this program examines the fateful confluence of events that led to the Tenerife tragedy and its continuing relevance for air travel today.

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Can lessons learned from the Twin Towers' collapse make new buildings safer?

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Everyone has heard of global warming, but a lesser-known man-made phenomenon has been nearly as powerful at affecting Earth's climate. A look at global dimming, created by soot and pollution reflecting the sun's rays and surprisingly helping to offset global warming's catastrophic advance.

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A mission to Saturn and its enigmatic sattelite, Titan, looks for clues to the origins of life.

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Driverless vehicles compete in a 130-mile race across the Majove Desert.

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NOVA recreates the expeditions of Sir John Franklin and Roald Amundsen, two Arctic explorers who set out to find the legendary Arctic sea route known as the Northwest Passage.

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A 40-year hunt for solar neutrinos leads to a new understanding of matter itself.

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David Attenborough probes the mystery of ancient life-forms perfectly preserved in amber.

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Forensic investigators tease secrets from the well preserved bodies of people buried long ago under peat bogs.

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Doctors, rescuers and mountaineers try to determine why people die attempting to climb Mount McKinley.

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He was the greatest scientist of his day, perhaps of all time. But while Isaac Newton was busy discovering the universal law of gravitation, he was also searching out hidden meanings in the Bible and pursuing the covert art of alchemy. In this program, NOVA explores the strange and complex mind of Isaac Newton. Using docudrama scenes starring Scott Handy (Masterpiece Theatre's Henry VIII) as Newton, this film recreates the unique climate of late 17th-century England, where a newfound fascination with science and mathematics coexisted with extreme views on religious doctrine. Newton shared both obsessions.

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One of the most daring clandestine operations of World War II was the 1944 sinking of the Norwegian ferry Hydro with its cargo of "heavy water" destined for the Nazis' secret atomic bomb project. Although the mission was declared a success, no one ever established if the special shipment was actually on board. In this program, NOVA descends 1,300 feet beneath a remote Norwegian lake to find the answer.

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A restless mountain threatens a bustling metropolis perched on its flanks.

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Exactly 100 years ago, Albert Einstein grappled with the implications of his revolutionary Special Theory of Relativity and came to a startling conclusion: mass and energy are one, related by the formula E = mc2. Among Einstein's ideas, E = mc2 is by far the most famous. Yet how many people know what it really means? In a thought-provoking and engrossing documentary, Einstein's Big Idea illuminates this deceptively simple formula by unrevealing the story of how it came to be.

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The search for the wreck of the Yamato, the largest and mightiest battleship ever floated and the pride of the Japanese Imperial Fleet. Constructed in absolute secrecy and sunk by American planes toward the end of World War II, her rapid demise had been a mystery, rather like a military Titanic.

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It was the greatest flood of the past two million years, and it posed a giant scientific riddle. A maverick geologist became convinced that thousand-foot-deep floodwaters had scoured out vast areas of the American northwest near the end of the last ice age. Mainstream scientists scorned his theory while he searched patiently for answers to what could have triggered such an inconceivably violent event. Finally, an ingenious solution silenced the skeptics: traces of an enormous ice dam half a mile high, which had blocked a valley in present-day Montana and created an enormous lake behind it. With the help of stunningly realistic animation, NOVA takes viewers back to the Ice Age to reveal what happened when the dam broke, unleashing a titanic flood that swept herds of woolly mammoth and everything else into oblivion.

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In 1909, Louis Bleriot undertakes a heroic first-ever flight over the English Channel.

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A team of experts takes on the preservation of the origianl Constitution, Declaration of Indipendance and Bill of Rights.

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Ever since its sensational unveiling by Yale University scholars in October 1965, the Vinland Map has been a lightning rod for passionate debate. Most reviews of the arguments, including NOVA's program, have focused on scientific tests designed to gauge the authenticity of the map's ink. The opinions of experts in cartography and historical manuscripts have commanded much less attention, yet from the outset scholars in these disciplines pointed out glaring anomalies in the case for the Vinland Map's authenticity.

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A chronicle of the turbulent birth, life and death of the Concorde, the world's first and only supersonic airliner.

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For decades, a fossil skull discovered in Piltdown, England, was hailed as the missing link between apes and humans. Entire careers were built on its authenticity. Then in 1953, the awful truth came out: "Piltdown Man" was a fake! But who done it? In "The Boldest Hoax," NOVA gets to the bottom of the greatest scientific hoodwinking of all time.

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NOVA follows a team of scientists as the monitor the Martian rovers Spirit and Opportunity. Spirit runs into some problems, but Opportunity takes a photograph that may confirm the existence of water on Mars.

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Follow an expedition to a remote cave in the Judean desert, first excavated by the famed Israeli archeologist Yigael Yadin in 1960-61. Yadin uncovered a cache of ancient documents, human skulls, and artifacts that shed light on a legendary revolt by Jews against the Roman Empire in the year 132. The uprising, led by Jewish patriot Shimon Bar-Kokhba, is said to have resulted in the Roman slaughter of 580,000 Jews. NOVA explores the last refuge of one group of Bar-Kokhba's followers with an historian whose bold theories have rocked the world of biblical archeology.

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Who were the first Ameicans and where did they come from?

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Examine the complex case of Typhoid Mary, a cook that was quaratined for life against her will in the early 1900s.

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"Origins: Back to the Beginning" explores how the colossal, mind-boggling forces of the early universe made it possible for habitable worlds to emerge. The clues begin with a race among scientists to capture lingering echoes of the big bang's ferocious energy in a microwave "whisper" from deep space. The race pits underdog astronomer Tony Readhead and his improvised detector in the high Andes against NASA scientists and their state-of-the-art satellite probe. Host astrophysicist Neil deGrasse Tyson shares his excitement with viewers as computer animation of the big bang's echo emerges on the screen. It's as close as we can get to a "photograph" of the primordial universe. Here we glimpse the seeds from which all the galaxies, stars, and planets eventually grew.

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"Origins: How Life Began," zeroes in on the mystery of exactly how it happened. Join the hunt for hardy microbes that flourish in the most unlikely places: inside rocks in a mine shaft two miles down, inside a cave dripping with acid as strong as a car battery's, and in noxious gas bubbles erupting from the Pacific ocean floor. The survival of these tough microorganisms suggests they may be related to the planet's first primitive life forms. Host astrophysicist Neil deGrasse Tyson deepens the search by investigating tantalizing and controversial chemical "signatures" of life inside three-billion-year-old rocks and meteorites found around the world.

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"Origins: Earth is Born" gives viewers a spectacular glimpse of the tumultuous first billion years of Planet Earth—a time of continuous catastrophe. Vivid animation lets viewers witness the traumatic birth of the moon from a titanic collision between Earth and an object believed to have been the size of Mars. Bombarded by meteors and comets, rocked by massive volcanic eruptions, and scoured by hot acid rain, the early Earth seems a highly improbable place for life to have taken root. Despite such violent beginnings, scientists have found new clues that life-giving water and oxygen appeared on our planet much earlier than previously thought.

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Can the US military's high tech weaponry prevail against insurgants.

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Nova investigates the impact of forces that are radically changing populations in both rich and poor nations.

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Nova investigates the impact of forces that are radically changing populations in both rich and poor nations.

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Scientists, meteorologists and storm chasers try to uncover the secrets of F5 tornadoes, the largest, most powerful and most dangerous on Earth. Included are looks at how funnels form and the devastating 2003 tornado in Moore, Oklahoma, plus "tornado tourists," who pay companies to take them to the ferocious phenomena to see them first-hand.

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While other reporters were embedded in fighting units during the Iraq War, NOVA was covering the emergency medical response, living night and day with the doctors, nurses, and medics in a frontline Combat Support Hospital (CSH). The program captures a period of the conflict in April and May of 2003 when CSH units faced a deluge of injured Iraqi soldiers and civilians who had little support from their country's collapsed health-care system.

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One of the most exhaustive investigations in aviation history reveals telling clues to the cause of a dissaster off Nova Scotia.

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A team of "glacionauts" verntures into a labyrinth of unexplored and hazardous glacier caves on France's Mt. Blanc.

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NOVA goes beyond the wagging tails and floppy ears to reveal surprising insights into the origin and evolutionary strategy of our canine companions. From a wolf research facility in rural Indiana to New York’s Westminster Dog Show, you’ll discover some amazing dog facts. Did you know the Saluki can beat any other mammal on earth in a three-mile race? That dogs developed spots for a specific reason? And that their evolution is helping us learn about our own?

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Rare lemurs and crocodiles with bizarre cave-dwelling behavior draw scientists to remote corner of Madagascar.

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Go inside NASA's risky field trip to the red planet in this tense and dramatic behind-the-scenes chronicle of the $820 million Mars Exploration Rover (MER) project.

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Is the magnetic field protecting Earth from deadly radiation about to reverse direction or even dissapear?

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Relive the engineering challenges that two bicycle makers overcame to become the first in flight.

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Part 3 of "The Elegant Universe” with host Brian Greene shows how Edward Witten of Princeton's Institute for Advanced Study, aided by others, revolutionized string theory by successfully uniting the five different versions into a single theory that is cryptically named "M-theory," a development that requires a total of eleven dimensions. Ten...eleven...who's counting? But the new 11th dimension implies that strings can come in shapes called membranes, or "branes" for short. These have truly science fiction-like qualities, since in principle they can be as large as the universe. A brane can even be a universe—a parallel universe—and we may be living on one right now.

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Part 2, "String's the Thing," opens with a whimsical scene in a movie theater in which the history of the universe runs backwards to the Big Bang, the moment at which general relativity and quantum mechanics both came into play, and therefore the point at which our conventional model of reality breaks down. Then it's string theory to the rescue as Greene describes the steps that led from a forgotten 200-year-old mathematical formula to the first glimmerings of strings—quivering strands of energy whose different vibrations give rise to quarks, electrons, photons, and all other elementary particles. Strings are truly tiny, being smaller than an atom by the same factor that a tree is smaller than the solar system. But, as Greene explains, they are able to combine the laws of the large and the laws of the small into a proposal for a single, harmonious theory of everything.

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Part 1, "Einstein's Dream," introduces string theory and shows how modern physics—composed of two theories that are ferociously incompatible—reached its schizophrenic impasse: One theory, general relativity, successfully describes big things like stars and galaxies, while another, quantum mechanics, is equally successful at explaining small things like atoms and subatomic particles. Albert Einstein, the inventor of general relativity, dreamed of finding a single theory that would embrace all of nature's laws. But in this quest for the so-called unified theory, Einstein came up empty-handed, and the conflict between general relativity and quantum mechanics has stymied all who've followed. That is, until the discovery of string theory.

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Forensic experts investigate the most famous aviation mystery of World War 1.

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A battered manuscript turns up after 1000 years revealing the mind of the Greek genius Archimedes

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On April 25, 1953, James Watson and Francis Crick published their groundbreaking discovery of the double helix structure of DNA, the molecule essential for passing on our genes and the ''secret of life.'' But their crucial breakthrough depended on the pioneering work of another biologistÐRosalind Franklin. She would never know that Watson and Crick had seen a crucial piece of her data without her permission. This was an X-ray image, ''Photo 51,'' that proved to be a vital clue in their decoding of the double helix. 50 years later, NOVA investigates the shocking truth behind one of the greatest scientific discoveries and presents a moving portrait of a brilliant woman in an era of male-dominated science. Sadly, Franklin never lived to see her vital role in the discovery vindicated. While Watson and Crick went on to win the Nobel Prize in 1962, Franklin died in 1958, at 37, from ovarian cancer; and the Nobel is not awarded posthumously. Hear the inside story from Maurice Wilkins, the colleague who showed her crucial x-ray to Watson; Raymond Gosling, FranklinÕs Ph.D. student with whom she made Photo 51; and Nobel Prize winner Sir Aaron Klug, FranklinÕs last collaborator, who shows new evidence of just how close Franklin came to making the vital double helix discovery herself.

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In 1989 marine biologist Alexandre Meinesz went diving off southern France and was stunned by what he saw: a dense blanket of waving green fronds stretching around him in every direction on the seabed. At first Meinesz had no idea what it was. Then he made the alarming discovery that a tropical alga had taken root in the cold water of the Mediterranean, wiping out native sea life wherever it grew. "Deep Sea Invasion" follows Meinesz on his scientific detective hunt to discover the source of this deadly organism, his uphill battle to alert authorities to its danger, and the struggle to find a non-toxic way to control it.

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Before Leonardo da Vinci painted "The Last Supper," Tibetan craftsmen were creating stunning artistry of their deities in the remote Himalayan kingdom of Mustang. In "Lost Treasures of Tibet," NOVA goes behind the scenes with the first conservation team from the West, as it undertakes the painstaking restoration of these ancient masterpieces and the beautiful monasteries that house them.

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In this high-altitude adventure, Jon Krakauer, author of Into Thin Air, world-class mountaineer Conrad Anker, and their team of climbers, scientists, and filmmakers take a trailblazing expedition to the top of Antarctica's tallest peak, Vinson. Along the way, their experiences are contrasted with those of Norwegian adventurer Roald Amundsen and British explorer Robert Falcon Scott who in 1911 raced to be first to reach the South Pole. Join NOVA and battle 60-mile-an-hour winds and temperatures as low as 35 degrees below zero. Learn about the horrible fate that befell Scott and his team after reaching the South Pole one month after Amundsen. See spectacular panoramic footage. Top scientists join mountaineers on an expedition to explore Antarctica and climb to Vinson Massif, which stands as the highest peak in the continent. Expert mountaineer Jon Krakuer narrates this documentary that also includes a look back to the year 1912 when Scott and Amundsen raced to reach the South Pole.

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A behind the scenes look at the competition to build the Joint Strike Fighter. Cameras follow engineering teams from Boeing and Lockheed Martin as each makes fateful design decisions.

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NOVA chronicles the discovery of a "living fossil," a fish called the coelacanth that has remained relatively unchanged since prehistoric times. The program recalls Darwin's prediction that some creatures would have not undergone any major adaptations due to selective pressures and would have remained relatively the same since prehistoric times.

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On March 25, 1944, a U.S. Navy bomber disappeared into the fog over the Bering Sea heading for a Japanese target. Fifty-five years later it has suddenly reemerged with a remarkable tale. NOVA travels to the plane's final resting place to unravel the mystery. Using clues found at the crash site and the latest forensic techniques, a U.S. government team gets to the bottom of this half-century-old disappearance.

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The air war in Afghanistan showed that sometimes the hottest pilots are sitting on the ground operating the remote controls of UAVs—or unmanned aerial vehicles. In newly declassified footage, "Spies That Fly" reveals the astounding capabilities of UAVs and the ambitious plans for future models.

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For nine months in 2000, Tom Hart Dyke was a captive of guerrillas who seized him while he was collecting wild orchids in the Colombian rain forest. Now Hart Dyke is at it again in the most orchid-rich and one of the most politically unstable parts of Irian Jaya, the western half of the island of New Guinea.

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In January 1993, six scientists and three hikers were scalded and crushed to death when they ventured into the smoking mouth of the active volcano Galeras in Colombia, confident that no eruption was imminent. This program tells the gripping story of this controversial field trip and the quest to predict when volcanoes will blow.

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Experts rescue pricess mosaics from an ancient city that is about to disapear beneath a resivoir.

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Toxic caverns teaming with strange life-forms spark a brand new theory about how caves form.

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A gene from a jellyfish is placed in a potato plant, making it light up whenever it needs watering. Rice plants are genetically transformed to produce vitamin A, preventing millions of African children from going blind. Other plants are modified to produce plastic or pharmaceuticals. While many see these as wondrous advancements, others fear they could spawn serious new threats to human health, a loss of genetic viability in our most important crop species, and other signficant and perhaps unforeseen problems. In "Harvest of Fear," NOVA and FRONTLINE join forces to explore the growing controversy over genetically modified agriculture.

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In 1987 NOVA embarked with seven brilliant, natural-born survivors on the longest-running boot camp in higher education: the nearly decade-long process of training to be a fully qualified doctor. Now all but one of them (who switched careers) are out in the world in high-powered medical careers, trying to balance the demands of work, families, and personal lives, as NOVA reports on Survivor MD, which airs in three one-hour segments.

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In 1987 NOVA embarked with seven brilliant, natural-born survivors on the longest-running boot camp in higher education: the nearly decade-long process of training to be a fully qualified doctor. Now all but one of them (who switched careers) are out in the world in high-powered medical careers, trying to balance the demands of work, families, and personal lives, as NOVA reports on Survivor MD, which airs in three one-hour segments.

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In "Tattooed Doctor," the first hour of NOVA's "Survivor M.D." series, emergency-room physician Dr. Tom Tarter eloquently describes some of the challenges and rewards of emergency medicine.

Watch NOVA season 28 episode 12 (S28E12)

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For decades Dr. Judah Folkman struggled against the grain of many in the cancer research community in his quest to pioneer a novel form of cancer treatment. In 1960, when he was a young surgical resident, Folkman discovered a startling secret about how cancer grows, which he called angiogenesis. It was a clue he would pursue for the next 40 years. "Cancer Warrior" tells the incredible saga of his personal dedication in a race to defeat one of humanity's most invincible foes.

Watch NOVA season 28 episode 11 (S28E11)

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The film follows the work of archeologists who are using new excavations and hieroglyphic translations to interpret the early history of CopĂĄn, a Classic Maya site in northern Honduras.

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The program documents a series of spectacular escape attempts made at Colditz Castle, the Nazi's most impregnable prison.

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The program investigates the mysterious disappearance -- and, half a century later, reappearance -- of Stardust, a civilian aircraft that crashed in the Andes in 1947.

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The program follows a French-led expedition to recover thousands of porcelain and other artifacts from a centuries-old Chinese shipwreck off the coast of Brunei.

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The program chronicles a year in the life of wildlife and people around Lake Biwa, Japan, a cycle that has continued unchanged for thousands of years.

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The film examines a disturbing increase in the prevalence of debilitating and sometimes life-threatening eating disorders, particularly anorexia and bulimia.

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The film takes a look at the extraordinary natural history of the Seychelles, an ancient archipelago of about 100 islands scattered between India and Madagascar.

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The program follows the efforts of two rival teams of astronomers as they search for exploding stars, map out gigantic cosmic patterns of galaxies, and grapple with the ultimate question: What is the fate of the universe?

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The film follows a six-year odyssey by a group of divers to identify a mysterious U-boat they discovered in 1991 off the coast of New Jersey

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The film uses a celebrated recent trial as a springboard to examine and successfully challenge the notion of Holocaust denial

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The past five years have seen remarkable progress in both treatment and basic understanding of the human immunodeficiency virus (HIV) that causes AIDS. In laboratories and clinics across the country and around the world, scientists and doctors have pooled their expertise to keep people infected with HIV alive and disease-free longer than was imaginable at the start of the epidemic. And now, through what may well be an unprecedented cross-fertilization process among molecular biologists, immunologists, geneticists, and practicing physicians, a series of discoveries about HIV-infected patients who have successfully fought off AIDS for as long as 20 years are being closely analyzed for clues to the ultimate goal in this fierce scientific battle—a vaccine. NOVA tells the story of this ongoing battle through the experiences of patients like Robert Massie, a "long-term non-progressor." Massie, a 43-year old environmental activist and Episcopalian minister was infected by a blood transfusion in 1978 and after an acute period of illness, somehow his immune system has kept the HIV virus at bay without drugs. Surviving AIDS reveals the scientific community engaged in an enormous and ongoing struggle, with discoveries traveling from labs to patients and back. And NOVA brings together the most promising research with compelling human stories of the patients and doctors who are devoting themselves to unraveling one of the most complicated mysteries in scientific history.

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When George Mallory was asked why he was willing to risk his life to climb Mount Everest in 1924 he simply replied "Because it's there." In Nova Video Library: Everest - The Mystery of Mallory and Irvine you are invited to unravel some of the mystery surrounding the success of Mallory and his climbing partner Andrew Irvine, who set off to climb Everest on June 8, 1924. Did they make it to the top of the summit before their eventual demise? If they did, their success would predate Sir Edmund Hillary and Tenzig Norgay by 30 years. This award-winning film takes a compelling look at their brave attempt and includes insightful interviews with the last two living members of Mallory's climbing team.

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At the height of the Cold War, US subs gathered secrets that neither spies nor satellites could expose. Until recently, almost nobody knew the hidden history of their tragedies and triumphs. As the US strove for supremacy in the Cold War, it pushed submarine technology to its limits. Breakthroughs led to unparalleled triumphs of espionage. And, missteps cost hundreds their lives. With recently declassified film, NOVA lifts the veil on tragic and mysterious submarine accidents and their high-risk spy missions that helped win the Cold War. Along with celebrated oceanographer and explorer, Robert Ballard (discoverer of the Titanic), NOVA goes in search of clues to two tragedies of the Cold War, the wrecks of the nuclear submarines Thresher and Scorpion. Recently declassified footage gives a unique glimpse of the wrecks and a chance to investigate the catastrophic accidents that overtook these subs and their crew.

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The pearl—the only gem produced by a living animal—has long carried a certain allure. Yet the best mollusk for making this gem—the pearl oyster—doesn't always produce a pearl, and even then, the pearls are rarely perfectly round. It wasn't until the late nineteenth century, when a Japanese scientist discovered a technique to incite oysters to produce these gems, that an industry was formed. Inducing an oyster to create a pearl is only half the battle—the oyster then needs a nutrient-rich, open environment in which to grow. This NOVA program looks at the science of pearl farming, follows efforts of oyster farmers trying to cope with growing problems of pollution and overcrowding, and considers the shifting sands of dominance within the pearl industry.

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Night stalkers by nature, leopards are observed both by night and day, using state-of-the-art camera equipment, to reveal never before seen hunting behavior. Filmed in the Luangua Valley in Zambia, Leopard reveals the challenges and dangers faced daily by these beautiful animals. Shadowed by hungry hyenas in pursuit of leftovers, and stalked by lumbering crocodiles hoping to tackle a lone leopard on a kill, how can they hope to challenge such beasts?

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The Siberian Ice Maiden, discovered in the Pastures of Heaven, on the high Steppes, is believed to have been a shamaness of the lost Pazyryk culture. She had been mummified and then frozen by freak climatic conditions around 2400 years ago, along with six decorated horses and a symbolic meal for her last journey. Her body was covered with vivid blue tattoos of mythical animal figures. Together with the newly discovered body of a man, nicknamed "Conan," her body has now been restored, and is providing new clues to the role and power of women in the nomadic peoples of ancient Siberia.

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This is the bizarre and fascinating story of the remains of Inca culture, frozen for posterity high in the mountains of the Andes. Evidence has emerged of sacrifice to the mountain gods, whose existence dominated the civilization over 500 years ago. The film traces the frozen bodies of children uncovered by archaeologists in South America, and follows an archaeological expedition to a high-altitude sacred site in search of ritual remains and another body. How did they come to be there? Why did they go to their deaths willingly? What was the religious framework that dictated their sacrifice to fierce gods?

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The shattered remnants of the Roman city of Pompeii bear witness to the risk that the people of Naples still face today.

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NOVA goes behind the scenes in Hollywood, where the art of illusion meets the science of perception.

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Experience the harrowing and life-threatening problems aboard the aging Mir space station through the eyes of the Russian and American astronauts who lived through them. Feel the heat from the fire that erupted on board. See the collision between Mir and another space craft. Endure the power outages and the computer failures that have jeopardized lives. Hear the debate over whether NASA should continue to risk its astronauts by sending them to Mir in preparation for the launch later this year of the most ambitious space project yet—the International Space Station.

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A massive planet-sized machine controls our weather day-to-day, and our climate season-to-season. It takes an event of staggering proportions to disrupt a machine this large and powerful, a juggernaut with more energy than a million nuclear bombs. Signs now indicate that such an event is underway - El Niño. More than a series of storms stunning the California coastline, El Niño is second only to the seasons in its effect on global weather. In a P-3 off the coast, a team plunges into a storm front to explore its cause and effects. In a boat off the Galapagos, an array of buoys are checked for temperature and current data. On a mountan in Peru, signs of the devastation of past El Niños are revealed. As scientists push to extremes to explore this phenomenon, they understand for the first time the extent to which all the world's weather is connected, and just how delicate is the balance.

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In 1714, following a maritime disaster, British Parliament offers £20,000 for the first reliable method of determining longitude on a ship at sea. It's known that longitude can be found by comparing a ship's local time to the time at the port of origin. The challenge is finding a clock—a chronometer—that can keep time at sea, where temperature changes, humidity, gravity and a ship's movement affect accuracy. NOVA chronicles the seventeenth-century journey to determine longitude.

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NOVA reports on new hope for victims of erectile dysfunction, also known as impotence. Among the promising therapies covered in the program are ones developed by Dr. Irwin Goldstein of Boston University School of Medicine and Dr. Harin Padma-Nathan, director of the Male Clinic in Santa Monica, CA. Actual cases are profiled, featuring men talking candidly about their problem—and going through treatment—on camera. Erectile dysfunction affects an estimated 52% of men between the ages of 40 and 70.

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Could the earth as we know it be about to drown? Huge ice sheets in Antarctica may be in the process of collapse, triggering a catastrophic rise in sea level that will inundate the most populous regions of the world. Battle extreme weather conditions in Antarctica with NOVA scientists as they gather data that will reveal new insight into the nature of global climate change.

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NOVA follows an international team of archaeologists and spelunkers into the Rio la Venta Gorge deep in the Chiapas jungle of Central America. In a rugged canyon they find caves filled with startling remains of a people called the Zoque who lived hundreds of years before the Maya. The extreme inaccessibility and relative dryness of the caves has preserved rare artifacts including bones, clothes, rope, and jewelry. Moving downstream from the caves the team finds a legendary city hidden in a tangle of jungle vines. Evidence of the Zoque's sophisticated writing system and their practice of ritualistic cannibalism and child sacrifice is shedding new light on a little known civilization.

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NOVA treks with a group of Himalayan climbers in their quest to reach the summit of Everest, along the way exploring in never-before-conducted tests how extremes of weather and altitude affect the human mind and body. Why do some people succumb so quickly to the ills caused by high altitude while others do not? Does exposure to extreme hypoxia—or lack of oxygen—take a lasting toll on the mind and body? Images of the brain scanned before and after the expedition may reveal truths about the physical traumas suffered in an oxygen-depleted environment, and give us new insight into why the tallest mountain in the world has claimed so many victims.

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In this scientific mystery, NOVA ventures to the front lines of medical research where scientists are scrambling to understand the strange new ailment popularly known as "mad cow disease." Highly infectious and incurable, this disease has claimed the lives of nearly a million cattle in Britain, and a variant is responsible for a handful of deaths in humans. Millions more people may have been exposed, and now the race is on to determine if we are on the brink of another deadly epidemic like AIDS or Ebola. What scientists are finding is making them rethink many fundamental assumptions about epidemiology and may hold startling implications for public health in the future.

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The race to build the world's first supersonic passenger airliner led to a massive espionage effort during the Cold War between the Soviet Union and the west. The Soviets started years behind the Concorde team, but espionage enabled Konkordski to beat Concorde into the air by three months. Now, NOVA reveals the cause behind the fatal Konkordski disaster at the 1973 Paris Air Show, which put the Soviet's work on the plane in a deep freeze. In a twist of fate, Konkordski is being resurrected in a NASA initiative to build the second generation of supersonic jets.

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Perfectly preserved 3000-year-old mummies have been unearthed in a remote Chinese desert. They have long, blonde hair and blue eyes, and don't appear to be the ancestors of the modern-day Chinese people. Who are these people and how did they end up in China's Takla Makan desert? NOVA takes a glimpse through a crack in the door of history, to a past that has never before been seen outside of China.

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Viewers see what it's like to be overwhelmed by a sudden onslaught of "white death"—an avalanche. Avalanches are an escalating peril as skiers and snowmobilers push the limits into the back country. NOVA witnesses scientists getting buried alive in their attempts to understand these forces of nature.

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The Lighthouse of Alexandria, one of the Seven Wonders of the Ancient World, guided sailors in the Mediterranean Sea for 16 centuries. NOVA follows an international team of archeologists, cartographers, topographers, and divers as they catalog and map thousands of previously inaccessible ancient artifacts.

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Viewers are sidewalk supervisors for one of the most unusual construction projects in the U.S. - the building of the stunningly beautiful and eminently practical Clark Bridge over the Mississippi River. Contractors faced every obstacle in the book—and then some—to build this complex structure.

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Sir David Attenborough hosts a never-before-seen look at one of the most misunderstood creatures in nature. Special photography, including infrared photography, exposes the secret life of the wolf pack.

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In a tale of secrecy, obsession, dashed hopes, and brilliant insights, Princeton math sleuth Andrew Wiles goes undercover for eight years to solve history's most famous math problem: Fermat's Last Theorem. His success was front-page news around the world. But then disaster struck.

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IRA terrorists and British bomb disposal experts tell behind-the-scenes stories of a a deadly cat-and- mouse game that pits ingenious IRA explosives officers against the most creative bomb squad in the world.

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On the 50th anniversary of the first supersonic flight, Chuck Yeager relives his gutsy assault on the sound barrier and tells how it was done. Other top test pilots of the day—those who survived—describe the dangers, mysteries, and thrill of trying to fly faster than sound at the dawn of the jet age.

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The world's leading sea horse biologist journeys to Australia and the Philippines to explore the secret lives of these extraordinary fish.

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Ever since World War II, physicians have struggled to find ways to treat heart failure, the biggest killer in the modern world.

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How do paleontologists and commercial fossil hunters know where to look for rare and priceless dinosaur bones?

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Astronomers discover planets beyond our solar system. But is there life on them?

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Citizens of Rome came to the Colosseum to behold free entertainment that usually came in the form of violent war games and bloody battles between humans and animals. This structure's most impressive feature was a massive canopy that provided shade from the hot sun. In order to investigate the possible forms the roof may have taken, NOVA's team constructs models at a smaller arena in Spain.

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Pharaohs who built magnificent temples to preserve their names for eternity often graced temple gates with pairs of obelisks, four-sided shafts of granite that taper gently upward until the sides meet at the top to form a pyramid shape. NOVA's team of experts attempts to build, transport, and raise a scale model obelisk using those materials available to ancient Egyptian engineers: rope, dirt, sticks, and stones.

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Even without such technological advances as wheels, arches, draft animals, iron tools, or a system of writing, the Inca—utilizing a tradition of shared labor—achieved a number of engineering feats. The NOVA team explores both stonework and bridge building, experimenting with dragging and fitting huge stones, and working with the people of an Andean village to create a suspension bridge made only of grass ropes.

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A distinctive feature of this stone site are the trilithons, which consist of two upright stones topped by a horizontal lintel stone. In this program, the NOVA team considers how to transport and raise the massive stones, as well as how to place the lintel stone on top. By comparing different strategies and adapting ramps, levers, and other tools that might have been available to the ancient builders, the team works to meet the challenge.

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In a 90-minuite presentation, NOVA reveals the ancient secrets of how the pyramids were built by actually building one. A noted Egyptologist, Mark Lehner, and a professional stonemason, Roger Hopkins, join forces in the shadow of the Great Pyramid of Giza to put clever and sometimes bizarre pyramid construction theories to the test.

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An in-depth and heart stopping look at the ultimate chemical reaction - the explosion. Using high speed photography and dramatic reconstruction, the film will chart the tarnished history of explosives: the terrible accidents, the scientific ingenuity and ultimately, the carnage of war and terrorism.

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Did the crash of continents that produced the Himalayan Mountains also trigger the Ice Age?

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This program reveals some of the billions of practically invisible organisms that live on, in, and around us.

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NOVA explores the links between our individual development and the evolution of life itself.

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Flights in Russia's powerful fighter jets are for sale to foreign travelers. So is the Russian Air Force still in the game?

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With a radically redesigned bill, the U.S. Treasury fights back against a new breed of counterfeiters.

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One of the final aeronautics challenges left in the world today does not involve the use of a plane, a rocket, or even an engine. No one has yet been able to circumnavigate the earth in a balloon. Any team attempting the feat would have to fly higher than most planes ever fly and would need a passenger capsule that could both offer protection from extreme cold and carry the proper navigation and life support equipment. Depending on the powerful jet stream to propel them, crew members would have to plot their course carefully and plan their schedule to coincide with the most advantageous winds. Even landing would be a risky venture. This program follows a team of three adventurers as they attempt to make just such a journey.

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Helped by remote sensing, an expedition searches Oman's vast al-Khali desert for the lost city of Ubar.

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This two-hour program chronicles Albert Einstein's life and scientific achievements from his birth in 1879 to his death in 1955. The first hour follows Einstein in his quest to understand the nature of light. Graphics depict some of Einstein's famous thought experiments, including his eventual understanding of the interplay between the speed of light and time and his development of the special theory of relativity. The program also goes into great depth about Einstein's personal life, including his romance with and marriage to fellow student Mileva Maric and the death of his father. The second hour unfolds with Einstein preoccupied with finding a theory that accounts for gravitation and determining what orders the universe. Einstein addresses gravitation in the universe with his general theory of relativity. This is confirmed experimentally in 1919 when a solar eclipse reveals stars in positions that could best be explained by his theory: that gravity causes light to bend.

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Bombing is on the rise across the United States. But science is fighting back. Hidden within the chaos of a crime scene lie clues that can solve the case. Can science help stop the "Bombing of America"?

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The Great Flood of 1993 leaves a wake of destruction across the Midwest. Can rivers ever be contained?

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Carl Sagan and other scientists investigate claims that people have been visited or abducted by aliens.

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A search for the causes of Sick Building Syndrome. Experts look at various problem buildings, inspecting their air conditioning, lights and carpets for clues to the mysterious maladies afflicting the workers inside.

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Recording sights that will astonish even experienced divers, NOVA documents an extraordinary day in the life of the largest coral reef in the world, capturing for the first time the annual spawning of coral and other unusual creatures of the reef.

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In the spring of 1991, a rash of suspicious store fires in Los Angeles set fire investigators on the trail of a serial arsonist. Using ingenious techniques to "read" burn patterns and reconstruct the chain of events at each fire, the team uncovered a crucial clue—a fingerprint on a crude incendiary device. Eight months later, the team closed in on their chief suspect and revealed the shocking truth behind his identity. A classic scientific detective story with a final twist that will keep viewers guessing until the end.

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Is there an asteroid or comet out there with our name on it? NOVA scans the skies and the geological record on Earth, for evidence that giant rocks from outer space have struck before and will eventually plow into our planet again.

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From their blistering beginnings as molten rock, the Hawiian islands have grown into a verdant paradise of unique lifeforms.

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Investigate the massacre of Tsar Nicholas and his family, and evaluate whether modern science has resolved the mystery surrounding Princess Anastasia.

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NOVA unravels baffling cases of bad air in buildings all over the world. Even hospitals are on the "sick building" list - along with offices, schools, homes and just about any enclosed space.

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What does it take to win at Indy? NOVA follows champion race driver Bobby Rahal and a team of engineers as they strive to design a new car that can win the checkered flag at the Memorial Day classic. The program also features racing insights from top drivers Emerson Fittipladi, Willy T. Ribbs and Lyn Saint James.

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In the third installment of a 10-year project, NOVA checks up on a group of aspiring doctors who've been chronicled since their first day of medical school in 1987. Now bona fide MDs and in the middle of residency training, the group faces the awesome responsibility of curing the sick and keeping their own lives intact.

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What amazing processes go on inside super-athletes and couch potatoes alike? NOVA uses the latest medical imaging techniques to explore the body's incredible inner workings-with the help of Olympic ice skater Bonnie Blair, world record long jumper Mike Powell and others.

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Born joined at the pelvis, Siamese twins Dao and Duan were brought to the United States from Thailand to assess their chances for being separated surgically. NOVA covers the intricate planning and protracted operations that eventually made the two girls into two distinct individuals.

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NOVA uses recently discovered documents to uncover the complicity of German architects and engineers in the Holocaust. Focusing on Auschwitz, the program tells a tale of ever-deepening evil as the prison camp was methodically converted into a super-efficient factory for genocide.

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NOVA looks at the most successful life forms on the face of the planet in Ants: Little Creatures Who Run the World, hosted by Harvard University's internationally renowned ant authority, naturalist Edward O. Wilson. What's impressive about ants is how they practice what we preach: family values. Unselfishness is the rule. Everything they do is for their colony's good. For them, socialism works.

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NOVA investigates the myth and reality of the first known Europeans to reach North America -Vikings. These intrepid Norsemen explored and settled parts of present-day North America 500 years before Columbus set sail.

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The subjects of Stone Age cave paintings thunder onto the screen as NOVA explores Woolly Mammoths. Recent discoveries show that the hairy ancestors of elephants fought off extinction much longer than anyone thought, surviving on an isolated island in the Arctic Ocean until as recently as 4,000 year ago.

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NOVA explores the common threads that link the more than 5,000 languages of Earth, including a controversial theory that claims to reconstruct words from a time when only a handful of languages were spoken, recalling the biblical story of the Tower of Babel.

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NOVA travels to Lake Baikal, the world's oldest and deepest lake, containing one-fifth of all the fresh water on Earth. Investigating Baikal from above, below and all around, NOVA charts its dramatically changing environment over the course of four seasons.

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Ten million years ago, an enormous volcanic eruption buried much of what is now Nebraska in up to 10 feet of ash, preserving countless skeletons of prehistoric big game animals. NOVA joins the discoverer of this treasure trove to learn what life was like when a lot more than buffalo roamed the West.

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NOVA probes the 1994 Los Angeles earthquake. Even as the city struggles to repair itself from the tragedy, seismic pressure continues to build. Scientists fear that newly discovered faults could, at any moment, trigger California's most devastating natural disaster.

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NOVA travels deep into the Amazon wilderness in search of a mysterious tribe- a tribe that dismembered and partially ate three prospectors in 1976. Locating the group, NOVA lives with them for three months, gaining insight into the customes and beliefs of a people whose lifestyle has not changed for centuries.

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NOVA tackles the long-taboo subject of menopause, profiling new research and examining the medical and ethical controversies that arise when science enables women to postpone menopause or even to bear children long after "the change." Stockard Channing narrates.

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NOVA explores the legacy of the great Auk, a magnificent flightless bird that was hunted to extinction over a century ago. In a journey retracing its migratory route, host Richard Wheeler kayaks from Newfoundland to Cape Cod and discovers that other marine species face the Auk's luckless fate.

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Polly wants a crackdown when it comes to the illegal trade in the world's most beautiful and intelligent birds: parrots. NOVA goes undercover with a US government sting that breaks an international parrot smuggling ring, landing some surprising suspects.

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NOVA experiences the relentless, round-the-clock life aboard the US Navy aircraft carrier, Independence-where every day is a constant drill of launching and landing aircraft atop a floating city of 5,000 people. The action includes Top Gun mock combat exercises and live-ammunition patrols over Iraq.

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NOVA visits the most cigarette-addicted nation in the world-China. Western advertising and trading practices have exacerbated the fatal romance with smoking in the world's most populous country, where lung cancer cases are beginning to strain the nation's health care system.

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Anthropologist Donald Johanson looks at how our human ancestors of two million years ago made their living. Contrary to popular myth, scavenging was a more lucrative living than hunting-and may have contributed to the development of human intelligence.

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In the first of a three-part series, noted anthropologist Donald Johanson probes the earliest ancestors of the human species - reaching back more than three million years to a strange ape who walked upright. Johanson takes viewers to the site in Ethiopia where he discovered the fossil remains of this missing link nicknamed "Lucy."

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NOVA explores ice-capped mountains-on the equator. These African giants are magical islands of life towering above the scorched plains. Giant forest hogs, bearded vultures, the elusive bongo and other exotic creatures live in this harsh and isolated high country.

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Velociraptors and primitive birds are among the fabulous fossil finds as NOVA accompanies an American Museum of Natural History expedition to the Gobi Desert. The trip relives the exploits of the Museum's dashing explorer of the 1920s, Roy Chapman Andrews -said to be the real-life model for Indiana Jones.

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NOVA delves into the history of secret communications and the people who wrack their brains to decipher them. The program probes the most celebrated of all cryptographic coups: the breaking of the World War II codes used by Japan and Germany and how codebreaking helped shorten the war.

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NOVA explores the nature of human perception through the puzzling condition called visual agnosia, the inability to recognize faces and familiar objects, made famous in Oliver Sacks' book, The Man Who Mistook His Wife for a Hat.

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A profile of the late Richard Feynman—atomic bomb pioneer, Nobel prize-winning physicist, acclaimed teacher and all-around eccentric, who helped solve the mystery of the space shuttle Challenger explosion.

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Bill Cosby guides viewers through the most exciting footage from two decades of NOVA in a 20th anniversary salute. Real-life action, adventure, mystery, drama and non-stop discovery fill this 90-minute special.

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US federal investigators are called in to determine the cause of a mysterious jetliner crash in Panama. Nothing about the accident makes sense, until a key clue emerges.

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NOVA takes viewers on the ride of their lives as it explores the science of roller coasters, where physics and psychology meet. New rides of the future may take place entirely in the mind—with virtual reality.

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NOVA soars with the condor, an extraordinary bird that lives a tenuous existence in the California mountains and the Andes of South America. Footage includes never-before-photographed nesting sites in the cliffs of Patagonia.

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Secrets of the Psychics was a PBS NOVA episode following James Randi's work. Also appearing in stock footage are Peter Popoff, Uri Geller, and many others. In the program, "Randi argues that successful psychics depend on the willingness of their audiences to believe that what they see is the result of psychic powers." This program is not to be confused with a later UK documentary Secrets of the Psychics, which was transmitted under this title as well as Secrets of the Super Psychics.

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Forensic sleuth Clyde Snow and a posse of experts travel to Bolivia in search of the remains of Butch Cassidy and the Sundance Kid. They find Hollywood and legend got a few things wrong.

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NOVA fans from around the country match wits in a fast-paced contest of general science knowledge celebrating NOVA's 20th anniversary. Famous guests pose questions for the viewers at home. Marc Summers hosts.

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NOVA covers both sides of the stormy controversy over the Tasaday tribe. When these isolated cave dwellers were discovered in the Philippines in 1971, they were hailed as a Stone Age relic. Now, many anthropologists denounce them as fakes.

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Wherever we shed our body cells, we leave an indisputable identity card: our DNA. NOVA investigates the new science of DNA typing which is putting increasing numbers of murderers and rapists behind bars.

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These days, piracy on the high seas often involves sonar, magnometers, metal detectors and other high-tech equipment for finding and plundering sunken ships. NOVA explores the swashbuckling seafaring pirates of old and their present-day successors.

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Athletes are training smarter, running faster, jumping higher and generally outperforming their predecessors—thanks to high technology. NOVA covers the record-setting trend for improving sports performance with science.

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NOVA covers scientists on the brink of a sputtering, shaking, impatient volcano, trying to forecast when it will go off. When it does, Mt. Pinatubo in the Philippines goes big time, producing the largest volcanic eruption in 80 years.

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NOVA tells the story of the German scientists abducted to the Soviet Union after World War II to help build an atomic bomb. The success of the crash program in 1949, with the explosion of the first Soviet nuclear weapon, shocked the world.

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For four decades, 400 African American men from Macon, Alabama were unwitting participants in a government study of untreated syphilis. NOVA tells the story of this notorious human experiment. George Strait, ABC News Medical Correspondent, hosts.

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The Gulf War was fought in 38 days of non-stop bombing and four days of swift ground action. Did bombing win it? NOVA looks at the history of strategic bombing and asks whether bombing has now achieved preeminence in warfare.

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In a 90-minute special presentation, NOVA reveals the ancient secrets of how the pyramids were built by actually building one. A noted Egyptologist, Mark Lehner, and a professional stonemason, Roger Hopkins (This Old House), join forces in the shadow of the Great Pyramid of Giza to put clever and sometimes bizarre pyramid construction theories to the test.

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NOVA examines the high-tech efforts to preserve the world's animal diversity. Noah needed only an ark—but today's conservationists need all the tools that biology, ecology, diplomacy and politics can muster if endangered species are to survive beyond the next century.

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NOVA looks at how Russia and the United States are attacking the intractable problem of alcohol abuse with old and new weapons—including prohibition, hypnotism, imprisonment, surveillance, deception, aversion therapy and group therapy as practiced by Alcoholics Anonymous.

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Two paralyzed drug addicts travel to Sweden to receive a revolutionary treatment for brain disease that is largely unavailable in the US due to the ban on fetal tissue research. "Brain Transplant" continues the remarkable story of a mysterious malady linked to a bad batch of synthetic heroin that NOVA first covered in the 1986 award-winning film, "The Case of the Frozen Addict."

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NOVA delves into the deep sea drama of life among the dolphins at research stations in Florida and Australia. Like humans and chimpanzees, dolphins have evolved a sophisticated social system that provides clues about the origins and purpose of big brains and intelligence.

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Five thousand years ago, a man perished in a mountain storm. In 1991, his frozen body was found along with artifacts of his vanished way of life. NOVA covers the international effort to unlock the secrets of this astonishing discovery.

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In a 90-minute special presentation, NOVA reveals the ancient secrets of how the pyramids were built by actually building one. A noted Egyptologist, Mark Lehner, and a professional stonemason, Roger Hopkins (This Old House), join forces in the shadow of the Great Pyramid of Giza to put clever and sometimes bizarre pyramid construction theories to the test.

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NOVA explores Earth's greatest natural wonder by rafting down the river that created it, repeating the spectacular first canyon voyage of the 19th-century explorer John Wesley Powell. The Grand Canyon tells the story of nearly 2 billion years of earth history plus the changes caused by three decades of human intervention.

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NOVA follows the trail of America's first inhabitants. Did they migrate across a Bering Sea land bridge at the end of the last Ice Age, as we all learned in school? Or did they arrive thousands of years earlier, possibly by some different route, as new archaeological evidence increasingly hints?

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NOVA goes behind the scenes to give the real story behind the FBI unit popularized in the Academy Award-winning film, The Silence of the Lambs. Using a detailed psychological profile, the unit helped the Rochester, New York police department catch a notorious serial killer who targeted prostitutes. Actor Patrick Stewart narrates.

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Physicists Albert Einstein and Leo Szilard reenact the signing of the 1939 letter that alerted President Franklin Roosevelt to the feasibility of atomic weapons. Szilard drafted and Einstein signed the famous warning, which led to the building of the first atomic bomb.

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The spectacular eclipse of 1991 passed over major observatories on the island of Hawaii. NOVA was there for 6 1/2 minutes of frenetic research that revealed new secrets about our sun.

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NOVA examines the mysterious whale strandings along the beaches of Cape Cod Bay, as the puzzling behavior becomes more common.

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Criminals still make money the old-fashioned way—by counterfeiting. NOVA looks at why US currency is so easy to fake and what the government is doing about it.

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Rating the audience for TV shows is a classic problem in statistical analysis. NOVA finds that ratings are getting more accurate but still are far from scientific.

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The nose knows. How much is the subject of NOVA's investigation of the mysterious aromas and hidden messages picked up by our sense of smell. David Suzuki hosts.

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NOVA takes a voyage on the newest of America's doomsday machines—the ballistic missle submarine USS Michigan. The Cold War may be won, but these submerged super arsenals continue to prowl the deep.

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NOVA covers the fight to put out Saddam Hussein's bonfire of oil wells in Kuwait, which has created the worst manmade pollution event in history. Fire fighting teams from Houston and elsewhere are faced with a Texas-size job.

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The spectacular eclipse of 1991 passed over major observatories on the island of Hawaii. NOVA was there for 6 1/2 minutes of frenetic research that revealed new secrets about our sun.

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This 80-minute NOVA pledge special chronicles the building of the Worldwide Plaza, 47-story office tower in midtown Manhattan, from a hole in the ground to a 770-foot skyscraper.

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NOVA follows the efforts of four participants in a celebrated California study to unblock arteries without using drugs or surgery before their heart disease becomes fatal. A studio segment featuring experts with varying medical views will air as part of the 60-minute program. ABC News Medical Correspondent George Strait moderates.

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The fastest machines in the sky are going to be slow stuff when the latest speed demons on the drawing board take to the air. NOVA looks at the intoxicating lure to fly even faster.

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The tallest mountain in the world? Think again—cartographers had to when satellite date revealed a peak called "K2" might be the real champ. Which is the world's tallest mountain?

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NOVA accompanies Soviet scientists on a deadly mission inside the sarcophagus-the massive structure that entombs the Chernobyl nuclear reactor. Will there be another deadly explosion?

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Forty years after they were discovered, the Dead Sea Scrolls have yet to be published in their entirety. NOVA looks at the laborious-some say scandalous-process of compiling and releasing this religious treasure.

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In a two-hour special, NOVA follows seven aspiring doctors through four years of medical school. The first examination, the anatomy lab, the first death, the first baby-it's all part of becoming a doctor. Neil Patrick Harris, star of ABC's Doogie Howser, MD hosts. (Follow-up to the program 1521 "Can We Make a Better Doctor?")

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NOVA covers the causes and attempted cures of baldness. Some men take pride in their bald heads; others will go to great lengths to cover up. Alan "Douglas Brackman" Rachins of NBC's LA Law hosts.

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Gregory Peck narrates a scientific voyage around Vancouver Island in search of whales. Humpbacks, Killers, Grays and other whale species make their appearance in spectacular, never-before-seen footage both above and below the waves.

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In an unprecedented insider's look, NOVA covers the training, flight and recovery of a cosmonaut crew that visits the Soviet space station Mir. Unexpected emergencies show that space travel is still far from routine.

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NOVA reveals the details of Moscow's secret plan to reach the moon ahead of the Americans. Was Neil Armstrong's "giant leap for mankind" almost upstaged?

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In the first program of a three-part miniseries on the Soviet space program, NOVA profiles the mysterious genius behind the world's first satellite, the first man to orbit the earth and other early Russian triumphs in space.

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Tyrannosaurus rex, the terrifying kind of the dinos, recently turned up in a nearly complete skeleton in Montana. NOVA follows the dig to extract the bones and looks at the science and lore of dinosaurs in general.

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Are dinosaurs still among us? NOVA looks at the contentious question of whether present-day birds are dinosaurs. Over the years, new fossil discoveries keep amending the answer.

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NOVA covers the most elaborate expedition ever undertaken in the search for dinosaurs—to China's Gobi desert. Paleontologists brave sandstorms, heat and worse to find their fossils.

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Will machines be able to beat us at our own game? The computer chess champ matches wits with the human world titleholder.

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NOVA returns to Mount St. Helens a decade after its cataclysmic eruption to learn how nature is recovering from the disaster.

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NOVA tracks a mysterious disease that suddenly and fatally attacks the children of a small Brazilian town. Researchers from the Centers for Disease Control in Atlanta are called in to crack the case.

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Ever wonder how junk mail finds you? NOVA investigates the hidden world of direct marketing, pointing out how advertisers know a lot more about us than we think.

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Robotic weapons that seek out and destroy ships, planes, and other targets are the wave of the future. NOVA questions whether their proliferation may spell an end to superpower invincibility.

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NOVA looks at the high-stakes quest to predict earthquakes. Despite past disappointments, geologists still hope to divine the clues that precede nature's ultimate upheavals.

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NOVA chronicles the Voyager space mission—from Earth to the ends of the solar system. Jupiter, Saturn, Uranus and dozens of moons star in this epic voyage of exploration. Actor Patrick Stewart hosts.

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NOVA visits Neptune, the planet that took Voyager 12 years to reach. Mysteries abound in and around this big, blue world at the outer limits of the solar system. Actor Patrick Stewart hosts.

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NOVA covers China's long road to economic and technological equality with the West, punctuated by frequent setbacks such as the 1989 massacre of pro-democractic demonstrations in Beijing. Part four of a four part series.

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Ever wonder how junk mail finds you? NOVA investigates the hidden world of direct marketing, pointing out how advertisers know a lot more about us than we think.

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NOVA examines the extraordinary transformation that propelled Europe outward into the world from the 15th to 18th centuries, while China remained the insular middle kingdom. Part two of a four part series.

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Covering last year's Exxon Valdez oil spill from an unexplored angle, NOVA focuses on how technology failed in preventing, containing and cleaning up the Alaskan disaster.

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NOVA examines an alarming nuclear waste problem at the Hanfrod Nuclear Reservation in eastern Washington state, where 45 years of mismanagement in the nuclear weapons industry will cost billions to correct.

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Sixty-five years after attempts to ban them, chemical weapons pose more of a threat than ever. NOVA looks at the problem of controlling substances that are easily produced and cruelly effective.

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NOVA reports on the 100-year-old legacy of pollution from mining that poisons the once-pristine waters of the Rocky Mountain states. Acid Rain and economic development also contribute to stress on the West's scarce water supply.

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Most cases of polio in this country are caused by the vaccine designed to prevent it. NOVA examines the controvery surrounding the nation's vaccine policy.

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It was a blustery day in December 1986, and the New England Coast was in the midst of a winter storm, accompanied by strong on-shore gales and an unusually high tide—conditions perfect for stranding whales in the confined shallows of Cape Cod. NOVA recounts this tragic episode and the happy suprise ending for the young whales who survived after being nursed back to health by the New England Aquarium in Boston.

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Princeton professor and author Robert Mark tracks down the engineering secrets of some of the beautiful buildings in the world including Notre Dame in Paris, St. Paul in London and the Roman Pantheon.

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Breast cancer claims the lives of four American women every hour. Jane Pauley of NBC News hosts and narrates this NOVA report on stepped-up efforts to reduce the death rate from this all-too-common killer.

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In part one of a two-part special presentation, NOVA reports on the trials to determine whether the new drug Interleukin-2—the first to make use of the body's own disease-fighting strategy—will live up to its promise as a pivotal cancer breakthrough. Jane Pauley of NBC News hosts and narrates.

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Airplane fires are often deadly. NOVA looks at efforts to make fires aboard planes less likely and more survivable.

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Scientists investigate the frozen remains of members of the 19th century Franklin Expedition to the Canadian Arctic and ask why all perished.

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Julia Child introduces NOVA's behind-the-scenes look at how science aids in the creation of snack foods.

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Today's sophisticated fighter jets can almost fly themselves, but well-trained pilots are still needed to win air battles. NOVA looks at how planes and pilots are adapting to high technology.

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NOVA follows archaeologists as they unearth clues, some 7,000 years old, about an unknown, mysterious and advanced sea-faring people who lived along the North Atlantic coast of the United States and Canada.

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A trail of evidence leading from a medieval abbey to a small town in Connecticut sheds new light on rheumatoid arthritis, a crippling inflammation of the joints with no known cause or cure.

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NOVA joins underwater archaeologists as they explore the oldest shipwreck ever excavated, a richly-laden merchant vessel dating from the time of King Tut.

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Princeton professor and author Robert Mark tracks down the engineering secrets of some of the beautiful buildings in the world including Notre Dame in Paris, St. Paul in London and the Roman Pantheon.

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Millions live in the shadows of nature's ticking time-bombs—volcanos. NOVA accompanies scientists who are developing new techniques to predict when volcanos will erupt and how violently.

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The Panama Canal opened in 1914 after a 30-year effort that dwarfed the building of the pyramids. Historian David McCullough navigates through the canal and tells the story of the human drama behind the engineering feat.

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Plants produce some of the world's most potent chemicals in the fight against disease. NOVA follows the urgent efforts to track down new medicines in nature.

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On the 25th anniversary of the Cuban missile crisis, NOVA investigates the spy planes and satellites that played a critical role in history and influence arms control today.

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Why do stars explode and how is the energy generated? What is the effect of all those little “aftermath” particles floating through space? Nova: Death of a Star is a 60-minute science documentary that explores rare astronomical events in all their dimensions. The film features the 1987 explosion of a supernova - first observed by a Canadian astronomer in Chile - and discusses its impact on the universe. Witness the celestial phenomena that baffles the scientific community as you travel from South America to Japan to Cleveland. A discussion of supernova neutrinos is a special highlight of the tape.

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In a case study of the strengths and weaknesses of the United States space program, NOVA chronicles the ambitious and long-delayed Galileo mission to Jupiter—still on the ground long after its planned May 1986 launch.

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NOVA presents two hours of the best from its 14 seasons of exciting science coverage. A "talking" chimp, an exploding volcano and a sight-and-sound space video are but a few of the memorable segments. Richard Kiley hosts.

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Harvard chemist George Kistiakowsky was an anti-Bolshevik soldier in 1919 Russia, an atomic bomb scientist at Los Alamos, a presidential advisor in the Eisenhower White House and an arms control activist. Shortly before Kistiakowsky death, he recounts his eventful career to interviewer Carl Sagan.

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NOVA travels to Antarctica with an emergency scientific expedition to study a baffling "hole" in the Earth's protective ozone layer.

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Fifty years after his death, the creator of psychoanalysis is still the subject of intense debate. Was Freud right or wrong? NOVA profiles the enigmatic man and his controversial legacy.

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NOVA cameras travel to Borneo, one of the last habitats of the wild orangutans, where scientists study the endangered ape. Who is observing whom? It is not always clear.

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Between 60 and 80 percent of all commercial airplane accidents are attributable to pilot error. NOVA looks at some shocking instances of pilot negligence and what airlines are doing to solve the problem.

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NOVA scans the universe with the infrared eye of IRAS—the Infrared Astronomical Satellite—and discovers never-before-seen comets, stars, galaxies and other celestial wonders and enigmas.

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Leprosy, a misunderstood disease that has been curable for 40 years, still afflicts some 12 million people. NOVA looks at the tragedy of the disease that need not be.

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NOVA presents two hours of the best from its 14 seasons of exciting science coverage. A "talking" chimp, an exploding volcano and a sight-and-sound space video are but a few of the memorable segments. Richard Kiley hosts.

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NOVA dips into the sad plight of our coastal waters, where toxic chemicals, raw sewage and disease-carrying microbes are routinely dumped.

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Birds do it; bees do it, butterflies, bats and eels do it—all leave one habitat to migrate to another, often thousands of miles away. NOVA penetrates the mystery of where animals migrate, why and how they get there.

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Fifty years after his death, the creator of psychoanalysis is still the subject of intense debate. Was Freud right or wrong? NOVA profiles the enigmatic man and his controversial legacy.

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NOVA cameras travel to Borneo, one of the last habitats of the wild orangutans, where scientists study the endangered ape. Who is observing whom? It is not always clear.

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Between 60 and 80 percent of all commercial airplane accidents are attributable to pilot error. NOVA looks at some shocking instances of pilot negligence and what airlines are doing to solve the problem.

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NOVA examines a controversial theory that traces our ancestry to a small group of women living in Africa 300,000 years ago.

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NOVA scans the universe with the infrared eye of IRAS—the Infrared Astronomical Satellite—and discovers never-before-seen comets, stars, galaxies and other celestial wonders and enigmas.

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NOVA explores the ground-breaking experiments that led to the discovery of a tiny sequence of molecules—and more clues to the mystery of how a complete baby develops from a single cell.

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Leprosy, a misunderstood disease that has been curable for 40 years, still afflicts some 12 million people. NOVA looks at the tragedy of the disease that need not be.

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Yankee ingenuity has designs on the America's Cup. NOVA goes behind-the-scenes to look at the engineering effort to design a technically advanced sailboat.

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NOVA dips into the sad plight of our coastal waters, where toxic chemicals, raw sewage and disease-carrying microbes are routinely dumped.

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Could there be life beyond Earth? Only recently has it become possible to scan the skies in a systematic attempt to find out. NOVA joins the search with guest host Lily Tomlin.

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What are the prospects for halting or curing the deadliest epidemic ever to challenge modern medicine? NOVA finds cause for both hope and alarm in the battle against AIDS.

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Scientific breakthroughs now make it possible to reproduce ourselves in ways never before imagined. NOVA looks at the medical, legal and moral questions raised by this brave new technology.

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The adventures of the Voyager 2 spacecraft continue as it passes the rings of Uranus. Scientists suspect that violent events in the early history of the planet may have shaped Uranus and its strange collection of moons.

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NOVA joins scientists in Argentina as they help locate kidnapped children and identify thousands of dead in the aftermath of a military reign of terror.

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NOVA and Frontline combine resources to explore the Strategic Defense Initiative. The two-hour documentary contains the most comprehensive information on "Star Wars" ever produced. Bill Kurtis of WBBM-TV/Chicago hosts.

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NOVA examines the medical community's alarm as the spread of antibiotic-resistant infection increases, and studies how one hospital fights its own dramatic epidemic.

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When Alexander Fleming discovered the penicillin mold in 1928, he never considered its possible therapeutic value. NOVA explores the "Fleming myth" and reveals the true story of thescientists who worked behind the scenes to develop the wonder drug of the century.

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NOVA follows a conservation success story as environmentalists, scientists and bird-lovers fight to save the majestic Osprey from extinction.

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NOVA journeys to a remote region of southern Venezuela where the land is alive with spectacular waterfalls, colored by exotic flowers and inhabited by rare species of birds and animals.

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When a high number of cancer cases struck the suburban community of Woburn, Massachusetts, the town mobilized to investigate why. The result was a landmark study of the effects of hazardous wastes. NOVA explores the legal and scientific implications of the link between environmental pollution and illness.

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In July 1982, a 42-year-old addict in a San Jose, California jail became paralyzed—unable to move or talk. His symptoms, caused by a bad batch of synthetic heroin, were indistinguishable from those associated with Parkinson's disease, a degenerative nerve disorder that strikes the elderly. NOVA traces the story of a "designer" drug which could lead to a major medical breakthrough.

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NOVA explores the incredibly complex emotional development of infants and examines the current theory that early childhood psychological intervention can head off emotional problems later in life.

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For centuries, the Chinese Kazakh horseman preserved their ancient traditions, refusing to be dominated by either the Chinese or nearby Russian cultures. Today, however, this nomadic tribe has integrated communism into its way of life. NOVA traces the ancient Kazahk lifestyle and looks at how the Chinese cultural Revolution has modernized Kazakh customs.

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Gaia, the Greek word for Earth goddess, also is the name of the controversial hypothesis that life on Earth controls the environment. NOVA explores this provocative theory that challenges conventional ways of thinking about the Earth.

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NOVA observes worldwide preparations as amateur comet hunters, astronomers and scientists armed with specialized cameras, high powered telescopes and spacecraft look to the heavens in search of the expected arrival in 1986 of Halley's Comet.

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NOVA explores the breeding, migration and survival patterns of the Rocky Mountain elk in a unique film, made totally under natural conditions. Telephoto lenses were used so as not to disturb the animals; filmmakers spent 18 months tracking the elk through the breathtaking Wyoming Rockies.

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What do Wolfgang Amadeus Mozart, the painter Raphael and chess champion Bobby Fischer have in common? They were all child prodigies. NOVA explores the current efforts to learn more about the nature of giftedness.

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NOVA joins the 50th anniversary celebration of the DC-3—the plane that revolutionized commercial air travel, served gallantly in World War II and is called the most important plane ever built.

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NOVA examines the intricate world of nature's construction industry and presents rare footage of unusual habits.

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NOVA examines current research and its ethical implications as modern medicine confronts the era of human gene therapy.

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NOVA follows a chase team—a group of scientists who chart deadly tornadoes—in an effort to learn more about predicting nature's most powerful and elusive weather phenomenon.

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NOVA charts the progress of an ambitious worldwide health program established to save the lives of millions of children who continue to die from common but curable diseases.

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NOVA cameras go behind-the-scenes to reveal the new art of illusion, Hollywood-style, focusing on three blockbuster films—"Return of the Jedi," "Indiana Jones and the Temple of Doom" and "2010: The Year We Made Contact."

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How are the computer and the robot affecting the way we work? NOVA chronicles the new industrial revolution reshaping the American workplace.

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Albert Einstein did not live to find the answer. NOVA follows a new generation of physicists in their search to explain the mystery of the universe.

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NOVA examines worldwide efforts of scientists who employ aggressive agricultual technologies to ensure food for the future.

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NOVA explores the breeding, migration and survival patterns of the Rocky Mountain elk in a unique film, made totally under natural conditions. Telephoto lenses were used so as not to disturb the animals; filmmakers spent 18 months tracking the elk through the breathtaking Wyoming Rockies.

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What do Wolfgang Amadeus Mozart, the painter Raphael and chess champion Bobby Fischer have in common? They were all child prodigies. NOVA explores the current efforts to learn more about the nature of giftedness.

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Imagine a bottle with no inside or a number bigger than infinity or parallel lines that meet. Welcome to the world of pure mathematics. NOVA offers a look into a wholly abstract, quirky world of mathematics.

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It's a mystery just how children acquire language. Does the process begin in the womb? And which comes first, language or thought? NOVA explores the fascinating world of baby talk and reveals the latest theories on this remarkable achievement.

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Acquired Immune Deficiency Syndrome, or AIDS, is a deadly disease that has struck down some 2,000 people in the four years since its discovery. NOVA examines how modern science has been unraveling the mystery of this baffling ailment.

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A rare look at the beautiful and desolate Wrangel Island-a Soviet possession 300 miles off the coast of Alaska-as seen through the eyes of Soviet Filmmaker and naturalist Yuri Ledin. Wrangel Island is not only the home to Siberian snow geese, polar foxes and walruses, but serves as the world's largest denning area for polar bears.

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NOVA examines the complex world of parasites, parasitic diseases and the exciting work currently being done by a new breed of medical researchers as they meet the challenge of conquering the world's number one medical problem.

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NOVA presents an in-depth look at India's attempt to use satellite technology to leapfrog into the era of space-age communication and whether it brings benefit or blight to India's villages and rural areas.

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NOVA explores the fascinating world of Dr. Harold Edgerton, electronics wizard and inventor extraordinaire, whose invention of the electronic strobe, a "magic lamp," has enabled the human eye to see the unseen.

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Victor Weisskoff: physicist, lover of music and citizen of the world. NOVA profiles the international statesman of science and learns that one of the giants of 20th century physics is also one of the country's greatest humanists.

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In this docudrama presentation, NOVA looks at the life, times and work of Gregor Mendel, the 19th cenutry Augustinian friar whose revolutionary scientific experiments in selective breeding have made him the "Father of Genetics."

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What do dinosaurs, a panda's thumb and a peacock's tail have in common? Dr. Stephen Jay Gould, the internationally renowned palentologist and evolutionary theorist, provides some surprising answers in this NOVA profile.

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The debate over acid rain continues to grow. NOVA travels to West Germany, the mid-Atlantic states and New England to examine the controversy surrounding this phenomenon.

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Acclaimed underwater cameraman Al Giddings takes NOVA viewers beneath the waves to explore the fact and fiction surrounding the Great White Shark.

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NOVA's sequel to "A Normal Face" examines the merging of technology and art in modern reconstruction and cosmetic surgical techniques.

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NOVA looks at the "blue revolution"—modern advances in the ancient art of raising aquatic animals and plants—in the United States, Japan, Scotland and other countries.

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NOVA visits a tribe of Ecuadoran Indians who still maintain traditions that date back to the Stone Age—thirty years after their first contact with Western Civilization.

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NOVA explores whether "yellow rain," described by members of the Hmong tribe of Laos, is a form of chemical warfare—or a naturally occurring phenomenon.

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NOVA explores the billion-dollar-plus Mahaweli Irrigation Project in Sri Lanka. Will this high-risk project prove to be a great leap forward or an industrial and sociological disaster?

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NOVA departs from tradition with the first National Science Test. Viewers can match wits with celebrity panelists Jane Alexander, Jules Bergman, Marva Collins and Edwin Newman. Art Fleming hosts.

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At a time when scientific exchange between the United States and the Soviet Union is at its lowest since the 1950s, a special hookup will allow eight leading Soviet and American scientists to share ideas face-to-face before millions of television viewers in each country on this NOVA special.

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Victor Weisskoff: physicist, lover of music and citizen of the world. NOVA profiles the international statesman of science and learns that one of the giants of 20th century physics is also one of the country's greatest humanists.

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What are America's obligations to its native population? As an important Indian health act comes up for renewal in Congress this Spring (1984), NOVA explores the state of medical care for a proud but vulnerable minority.

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Al Giddings is one of the greatest underwater photographers in the world. In a riveting look at the unearthly beauties and terrors of the seas, NOVA presents a portrait of Giddings at work.

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Is there a cure for paralyzing spinal injuries? Most neurosurgeons are doubtful, pointing to the central nervous system's most apparent inability to heal itself. But others dispute the point. NOVA explores the debate, the hopes for a cure and recent breakthroughs to help paralyzed patients.

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Efforts to control the population explosion are among the burning controversies of our time. NOVA looks at the one-child policy of the People's Republic of China, a revolutionary decree with profound implications for a people accustomed to traditionally large families.

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An astronaut once observed a great white light shining out from the bottom of our world: Antarctica, the ice-covered continent we are only just beginning to understand. NOVA visits this wilderness of ice, larger than the United States and Mexico combined, whose only warm-blooded residents are seals, skuas, penguins and scientists.

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In the past decade, a number of researchers have begun systematic laboratory research into extrasensory perception—ESP. NOVA considers the claims for—and against—paranormal phenomena and looks at some startling applications in the field of archaeology, criminology and warfare.

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Patients at an Australian institution for the severely handicapped rebel against a pair of over-zealous custodians. This astonishing true story was filmed as a docudrama, written and performed by the patients themselves.

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When plastic surgeons repair the shattered face of a soldier or rescue a child from a disfiguring disease, the victory is more than skin-deep. NOVA looks at the history, heroes and miracles of plastic surgery in mending the accidents of war and birth.

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Can the thoroughbred horse run any faster? NOVA examines the billion-dollar horse racing industry in its search for the magic combination of speed, stamina and the will to win.

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Dr. Elizabeth Kubler-Ross has become a legend in her lifetime for her work with the dying. For the first time on American television, her explorations with patients are captured in film, as NOVA presents an intimate portrait of the Swiss-born psychiatrist at work.

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Remote tribes and exotic islanders have been made known to the world through the lens of anthropology. But in recent years, some of these people have begun to object. NOVA travels to Margaret Mead's Papua New Guinea and looks at anthropology from the other side.

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NOVA looks at computers in the classroom through the eyes of MIT's Seymour Papert, father of the Turtle—a computerized robot that crawls on the floor and talks in versatile language even five-year-olds can learn.

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Seattle dentist Barney Clark received the first complete artificial heart implant in 1982 and lived on for three post-operative months. NOVA investigates the risk, costs and controversies surrounding the development of the artificial heart.

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The dream of talking with animals has been with us for centuries. NOVA explores the latest research, from language experiments with dolphins and apes to studies of animal calls in the wild.

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The accident at Three Mile Island made front page news all over the world and rocked the entire nuclear power industry. In this special 90-minute broadcast, NOVA presents a docudrama chronicling the minute-by-minute events leading up to the accident and examines the questions raised about safety confronting nuclear power industry today.

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"Why can't I lose weight?" It's a question many Americans ask themselves everyday. NOVA comes up with some surprising answers about weight and dieting that could have significant impact on our daily lives.

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NOVA takes a spellbinding voyage through one of the world's most fascinating and colorful ecosystems: a coral reef, where the line between plants and animals is blurred, "rocks" move, eat and fight, fish farm, and weak animals borrow the shields and weapons of stronger ones.

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Every 58 minutes between now and the end of the century, one American will die from asbestos exposure. NOVA turns its spotlight on the tragic consequences of asbestos use and on the current controversy over who is responsible.

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From inside the human body and the miracle of developing life to an insects world seen from the point of view of the insect, cinematographer Lennart Nilsson shows us the world in new ways. Part I, "The Ultimate Journey", moves from fertilization to birth of the human child, with excursions into comparative embryology. "The Unknown World" explores fur beetles and book worms and viruses among others - you will not be able to look at a fur coat the same way again. And in "The Photographer's Secrets" the technical people who developed the instruments he used explain how the cinemagic is done - a kiss from the inside, an opera singer's vocal cords, a tractor as seen 'over the shoulder' of an emerging worm. Mikael Agaton (additional writer)

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A gripping docudrama about a mysterious, highly lethal disease which struck a village in Nigeria in 1969, and the frustrating, seesaw battle against it. NOVA recounts how public health workers came perilously close to accidentally releasing a deadly virus in the US.

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NOVA captivates a remarkably candid portrait of Nobel prize-winning physicist Richard Feynman, a man of few pretensions and tremendous personal charm, who speaks with the same passion about a child's toy wagon and the frontiers of subatomic physics.

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This land of fire and beauty is the most isolated island chain in the world. NOVA cameras uncover an extraordinary world far from the teeming tourist hotels, one filled with unique life forms, but also scarred by tragic extinction.

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What is aging? Why does it happen? Can it be stopped? NOVA presents a startling report on research into the processes which make us age and how to control them.

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To celebrate its 10th broadcast season, NOVA repeats the very first NOVA program every aired, a fascinating and delightful program about how wildlife films are made.

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While America's passenger-train service deteriorates, trains in Japan and Europe are speeding ahead at over 150 miles per hour. NOVA reports that the super-fast trains are finally coming to America.

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NOVA follows the great grey whales along their annual marathon migration from the Acrtic to the Mexican coast and reveals little known facts about the mating and feeding habits of the gentle giants.

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NOVA reports on the staggering water problems of Southern Louisiana—where the mighty Mississippi is threatening to change its course, and where last year 49 square miles of coastline disappeared into the Gulf of Mexico.

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An investigative report on US dependence on foreign sources of strategic minerals, vital to the aerospace and steel industries, which examines and questions Reagan Administration policies toward those international sources.

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NOVA introduces some of the winners of the 1982 Westinghouse Science Talent Search: high school students whose interests range from silkworms to solar cells. With education facing a deepening financial crisis, will this year's group of well-trained young scientists be among the last of the best and the brightest?

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Of the 70,000 Americans hospitalized annually for severe burns, one-third are children. NOVA tells the story of extraordinary personal resilience in an 11-year-old boy's fight to recover from burns suffered over 73 percent of his body.

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The Himalayas, highest peaks in the world, are crumbling. People are making them crumble, and people are the victims, as NOVA reveals in this breathtaking documentary.

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For the first time on television a rigorous, scientific investigation into the fact, fiction, and hoax of unidentified flying objects. With vivid film and accounts from several eyewitnesses including astronauts, NOVA sifts the evidence for and against the existence of UFOs.

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What is aging? Why does it happen? Can it be stopped? NOVA presents a startling report on research into the processes which make us age and how to control them.

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In this vivid study of mimicry and camouflage NOVA shows dramatically how snakes, butterflies, fish, turtles and many other kinds of animals, both predators and their intended victims, use remarkable forms of deception to achieve their goal: to eat, or avoid being eaten.

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NOVA visits San Francisco's Exploratorium—part laboratory, part school, part three-ring circus—run by an unlikely collection of physicists and high school students.

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NOVA shows how scientists go about creating new forms of life, and investigates the impact of the gene bonanza on industry, medicine, and the universities themselves. NOVA reveals that other countries are plowing far more resources than the US into the burgeoning industry.

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NOVA explores the past, present, and future of American television including the potential of cable, the Columbus, Ohio, two-way TV experiment, the array of new techniques and their potential social impact. Will the new video technology let people see what they really want, rather than what the networks want?

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What is it like not to be able to communicate with others? NOVA explores the severest of speech disabilities with Dick Boydell—born with cerebral palsy, confined to a wheel chair and unable for 30 years to say more than "yes" or "no" and investigates some of the new technology that gives the speechless a "voice."

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One of the biggest investigations in medical history began when a mysterious killer disease broke out during independence celebrations in Philadelphia in 1976: Legionnaire's Disease. NOVA traces the search for a cause and cure—a search bedeviled by false trails, accusations of incompetence and cover-up, and increasing urgency as the death toll mounted.

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NOVA takes an intimate look at Robert Tory Peterson, the man whose best-selling guide books to ornithology have played a pivotal role in turning birdwatching into a mass sport.

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NOVA captures the breathtaking power and determination of these amazing creatures and examines how business and technology are changing the fishing industry—and the salmon itself.

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It's over 300 years since Galileo turned his new telescope on Saturn and first saw its spectacular rings. NOVA shows the beauty and new mysteries discovered by Voyager 1 on its historic visit.

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The beauty, endurance, and raw power of animals in the wild are captured on film as NOVA juxtaposes Olympic athletes performing feats which have parallels in the animal kingdom with animals who are the champions of grace and strength.

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Ever thought what it's like having your mirror image talk back to you? It can be an everyday occurrence for identical twins. NOVA tells the incredible story of scientific research on twins—a field marked by brazen and damaging fraud, but also by suprising and important new discoveries about nature's recipe of heredity and environment which makes us all unique individuals.

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William H. Whyte's insightful and humorous look at city parks, plazas and streets, and the people who use them. Whyte shows the remarkable research he did over a period of many years to find out why some city squares and small parks are enjoyable while others are so dreary. His work led to the transformation of some New York City plazas from barren to bustling. Whyte shows how any city—large or small—can lick the problem of downtown dreariness.

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You are not alone! Like it or not, every human being and virtually every living creature is, in a sense, owned and operated by legions of prehistoric organisms, hordes of them in each cell in the body. That is one of the startling revelations as NOVA explores the mysterious wonder of life with Dr. Lewis Thomas, a leading biologist and award-winning author described by Time as "quite possibly the best essayist on science anywhere in the world."

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Many were delighted by the extraordinary special effects in movies like "2001" and" Star Wars," but few realized how their magic relied on technologies as futuristic as their science fiction plots. NOVA introduces 20th century pioneers who use computers and lasers to create an extraordinary array of strange, exciting new art forms.

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The controversy which exploded a century ago when Charles Darwin published "The Origin of Species" is erupting again with new facts and emotion. NOVA explores challenges to the theory of evolution coming from evidence in fossils, from biology laboratories, and Creationists.

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Called the "teeth of the wind" by those who have battled them for centuries, locusts continue to plague hundreds of millions of people. Rare desert rains transforms locusts from harmless grasshoppers to voracious swarms capable of destroying all vegetation in their path. NOVA reveals some of man's latest attempts to rid himself of his age-old enemy, the locust.

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A NOVA showing the extraordinary discoveries of X-ray astronomy. This new science has revealed that our universe is much stranger and more violent than ever imagined, filled with neutrons, stars, exploding galaxies, quasars and black holes—a universe seething with energy, bursting across vast distances of space and time.

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A great secret lies locked inside the master violins created by Italian craftsmen like Antonio Stradivari in the 17th and 18th centuries. Now, a Wisconsin physicist, working alone in his cellar, may have solved the violin mystery.

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More people die in fires in the US than in any other industrialized country. In an alarming report that challenges the complacency of the US fire prevention establishment, NOVA uncovers glaring gaps in our defenses against flames that kill. Sealing any one of these gaps might save thousands of lives and prevent enormous pain and misery.

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NOVA reports on the potential danger of modern computers that gather "routine" information about our daily lives as we buy things, go to the hospital, or make donations. Computers can know more about us than our closest friends. NOVA examines how much of that personal information is readily shared with other computers.

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It's over 300 years since Galileo turned his new telescope on Saturn and first saw its spectacular rings. NOVA shows the beauty and new mysteries discovered by Voyager 1 on its historic visit.

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The beauty, endurance, and raw power of animals in the wild are captured on film as NOVA juxtaposes Olympic athletes performing feats which have parallels in the animal kingdom with animals who are the champions of grace and strength.

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For 150 million years, dinosaurs dominated the earth. Then, 65 million years ago, they suddenly vanished, along with a great deal of the planet's animal and plant life. NOVA examines a remarkable theory about the cause of the catastrophe—in which the first clue to the solution was a piece of clay.

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Sophisticated instruments used by astronomers enable earthlings to see beyond what was once the cloudy barrier of the Milky Way, to a universe of perhaps 100 billion other galaxies. NOVA takes a trip into outer space to see these clusters which are as old as time and several million light years away.

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NOVA investigates what science can do in helping to solve murder—in understanding why it occurs, and how the rate might be reduced—and explores the work of people who have the stark job of dealing with death: the police, pathologist, scientists and psychiatrists.

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When Mt. St. Helens erupted earlier this year, it focused the attention of the whole world on the almost incredible destructive forces that volcanos can release. Geologists from around the world congregated at the volcano and NOVA joined the vigil for an in-depth look at the incident and its aftermath.

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NOVA examines the Dead Sea. The lowest place on earth, at 1400 feet below sea level, it is jointly owned by Israel and Jordan. If used properly it could become a vital natural resource for both countries, giving them not only salt, but protein, fertilizer, oil, and a solar energy store.

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This program explores clues gathered from ancient rocks and meteorites in an attempt to piece together how our planet formed, what happened during its earliest days, and when life first appeared. The program includes visits to the scene of a fresh fall of meteorites, several volcanic eruptions, and an underwater glimpse of molten "pillow" lava as it oozes out of volcanic vents in the sea floor.

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Is the fagara root a match for the stethoscope? This program looks at the contributions of both traditional herbal medicine and western orthodox medicine to the health of the Nigerian people.

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NOVA tells the story of still and cine photography in science—from the extraordinary work of the pioneers in the early 1800s to how the ability to freeze time on film in ever shorter periods has given scientists remarkable new insights. Today photography enables us to analyze (frame by frame) the thousands of molecular reactions that can happen in less time than the blink of an eye.

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Water, water everywhere...but just how useful is it? NOVA travels to the Adirondack Mountains where acid rain is killing many high elevation lakes; to the Mississippi River where chlorine has combined with natural and manmade organic chemicals to form cancer-causing toxic chemical susbtances; to California, where conservation recycling has had to become a way of life; and to Bedford, Massachusetts, where the town wells have been contaminated by industrial waste.

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Thomas Edison is the quintessential American hero, the Wizard whose inventions revolutionized modern living. But there was always more to Edison than met the eye. He was a complex and contradictory man; a brilliant inventor, a foolish investor; a demanding boss, a liberal benfactor—a public figure that no one ever really knew. NOVA profiles the man behind the mythical reputation.

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On Wednesday, November 12, 1980, Voyager 1 is expected to arrive at Saturn for a first time ever extensive close-up investigation of the majestic ringed planet. Astronomers can expect to gather more information than ever before possible. On the day before this historic event, NOVA documents Voyager's journey through the outer solar system.

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Is interferon—known as IF in medical shorthand—the wonder drug and cure for cancer that some doctors claim? NOVA travels to London, Stockholm, Houston, San Francisco, and New Haven in search of the answer in the most complete film on interferon ever to appear on American television.

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Locked in the shale of the Western Rocky Mountains is more oil than in the Middle East—more than enough to solve our dependence on foreign crude oil. But will shale oil solve our gasoline shortage, or will it simply turn the Rockies into a gigantic industrial zone? NOVA explores the promise and the problems of shale oil.

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One year in the intricate life of a coastal lagoon unfolds in an hour's time when NOVA documents the fragile tidal ecosystem which supports the entire ocean.

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In one of the first films ever to come out of modern China, NOVA sifts through clues that Chinese scientists have uncovered in their pursuit of particularly virulent and elusive forms of cancer from which one out of every four people die.

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Congress is currently considering a proposal that would double the size of America's national park system by designating a sizeable chunk of Alaska as off-limits to developers. NOVA explores the public debates on Alaska, such as the construction of the oil pipeline—a proposal that has sparked a bitter controversy between conservationists and developers.

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Congress is currently considering a proposal that would double the size of America's national park system by designating a sizeable chunk of Alaska as off-limits to developers. NOVA explores the public debates on Alaska, such as the construction of the oil pipeline—a proposal that has sparked a bitter controversy between conservationists and developers.

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Traditionally zoos were designed neither for people nor animals; barred cages taught people more about their separation from nature than about an animal and its habitat. But just as man has realized that he has all but destroyed much of the world's wilderness and its wildlife, he is realizing that the zoo may be the last refuge for wildlife. NOVA visits several United States zoos to examine a variety of activities of concern today: breeding, public education, creative new animal habitats, and the reintroduction of animals to their natural environment.

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For thousands of years people have managed to live in deserts all over the world. But in recent years, a growing population and the demands of the international market have put more stress on these poor and easily exhausted lands. NOVA examines the consequences and possible solutions to desertification.

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When first invented 18 years ago, lasers were called "a solution looking for a problem;" nobody could think what to do with them. But in fact research scientists immediately began to exploit their pure colors and near-perfect focusing ability. Today lasers have grown into a billion-dollar business. They are used in construction, manufacturing, clothing, dentistry and medicine. And the future uses of lasers are likely to be of major significance as the means of achieving nuclear fusion and as a very high efficiency communications medium.

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Henry Ford, a great friend of Edison, was a film enthusiast who amassed some one and a half million feet of film during his lifetime. Deposited in the National Archives and known as the Ford Film Collection, it covers not only the Ford family and Ford Motor Company but also contains newsreels, and general films produced under Ford. Using the Collection, NOVA profiles Ford's life and times.

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The fortified plateau above Athens known as the Acropolis is the site of some of the most remarkable architecture in the world: its marble structures built in the fifth century BC, including the renowned Parthenon, represent the artistic peak of classical Greek architecture. NOVA examines how the heavily polluted air of Athens produces acid rain which is dissolving the marble sculptures and columns; and how iron tiles used extensively in repair 40 years ago are now rusting, expanding and shattering the stone structures.

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NOVA shows a year in the life of a beaver pond and includes almost every life form that exists in, on, under, around and above the water, from the microscopic plant life of summer to the eagles feeding on carcasses of deer that collapsed on the winter ice.

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In the summer of 1977 Paul MacCready, a California scientist and businessman, won the coveted Kremer Prize. His achievement was to design and build an airplane which completed, unaided, a one-mile figure-eight course entirely under the power provided by the pilot himself. This is the story of those many failures and MacCready's success.

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NOVA investigates the theories of von Daniken and others that the Earth has been visited by intelligent beings from outer space. Among claims examined are: that the building techniques used in the Great Pyramid of Cheops are so advanced that only an extraterrestrial intelligence could have built it; and that the engraved stones of Palenque in Mexico depict an ancient astronaut at the controls of a space rocket.

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In a dramatic docudrama, NOVA reconstructs the controversial lawsuit raised against renowned heart surgeon Dr. Denton Cooley when one of his patients died after heart surgery, and examines the legal and moral issues this raises in the practice of modern medicine.

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In the rain forests of Zaire, in the heart of Africa, live the Mbuti Pygmies. The Pygmy way of life has always been extraordinarily difficult to capture on film, though many have tried. NOVA presents a rare portrait of an elusive people, made by an independent filmmaker who lived with the Pygmies and won their trust.

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Second of the two-part series on space programs, NOVA looks ahead to the future, post-Apollo and the role that man in space will play, including the possibility of space colonization—huge orbiting space stations where people live and work in an earth atmosphere under artificial gravity.

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It has been known since the turn of the century that there are four human blood groups, based on different red cells and serum characteristics. NOVA looks at the more recent discovery that the different white cell types, as determined by a variety of different molecular markers on the cell surface, open up the possibility of the prevention of disease.

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NOVA explores the delibitating diseases that are often caused by poverty and follows two paths to health care in Tanzania and the United States.

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NOVA explores the different means by which hearing-impaired people have learned to penetrate the world of the hearing by visiting with Kitty O'Neil—a woman record-holding speed car racer; Frances Parsons, an advocate of hearing-impaired persons' rights; and workers at Silent Industries—a factory in Los Angeles founded by a deaf man.

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NOVA profiles Linus Pauling—the only person to have received two unshared Nobel Prizes for his work in nuclear weapons.

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In part one of this two-part exploration of the diversity of world languages, NOVA examines how and why the bewildering confusion of languages came about.

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NOVA traces 300 years of speculation, investigation and discovery that have centered on Mars—particularly the theory that the planet could support life. Questions raised by NASA's 1976 Viking mariner missions about how the vast canyons were formed are also explored.

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NOVA explores the huge international illegal trade in animals, penetrates the thriving underworld of smugglers and assesses the effects on vanishing wildlife.

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Solar energy is increasingly popular as a home heating source. But only recently has it been seriously considered as a source of industrial power. NOVA looks at this new industrial approach, such as the use of a huge windmill in Ohio, giant machines that may generate electricity from the heat of the tropical seas or from the motion of waves, and an orbiting solar power station able to beam microwaves to earth.

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In the winter of 1976-77, 80 percent of the wolf population in Northwest Alaska was the target of aerial hunts. Although the area is roamed by the Western Arctic caribou herds—a natural predator of the wolf—the caribou population has been steadily decreasing in number. NOVA examines how the Dept. of Fish and Game is handling the the problem of wolf control.

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NOVA investigates the controversial theory of Harvard University biologist E.O. Wilson, that many aspects of human behavior are genetically determined.

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NOVA explores the history of genetic engineering and the possible risks and benefits of this area of research

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NOVA profiles chemist Russell Marker who made the birth control pill possible by discovering a synthetic substitute for the hormone progesterone.

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NOVA looks at blackbirds, their winter habit of nesting in the millions, and the destruction they do to crops.

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NOVA recreates March 1975 at Brown's Ferry, an Alabama nuclear power plant—the largest in the world—that suffered a seven-hour fire which came very close to developing into a major public disaster.

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NOVA follows the lives of three boys who have combined immuned deficiency—a disease that leaves its victims with no immune system.

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NOVA explores the research on the 1976 drought in the western United States which led some solar scientists to discover the link between weather patterns and the 11 year sunspot mystery.

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What is the price we are prepared to pay for coal? NOVA looks at the environmental and health safety issues raised by the government, industry, and the victims.

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If you were a dinosaur scientist, what would you do with a pile of fossil bones? How would you even start to put the giant jigsaw puzzle together, never mind discover anything about how these dinosaurs lived? NOVA explores the incredible world of the dinosaur scientist.

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NOVA traces the development of Hitler's V-2 rocket through rare footage obtained from the National Archives—some never broadcast before on television.

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Since 1945, hundreds of ships and planes and thousands of people have mysteriously disappeared in an area of the Atlantic Ocean off of Florida, known as the Bermuda Triangle. NOVA penetrates the mystery of the terrifying Bermuda Triangle.

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Recent scientific developments have made it possible to detect a wide variety of defects in unborn babies. NOVA focuses on the ethical question that must be considered: What defines a defect? Should defective babies be aborted, or should they be allowed to live?

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Benjamin is a healthy, normal baby, whom we meet at birth and whose first year of life provides the backbone of this revealing NOVA about early child development.

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NOVA shows the Netsilik eskimoes of Pelly Bay and their traditional way of life and what happens when Western civilization is imposed upon them.

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NOVA explores life underground, from foxes and badgers through moles and worms down to the myriad of micro-organisms that make soil the most complex substrate for life on earth. Included in the film is extraordinary footage of a mole burrowing and of roots growing.

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Dr. Norman Shumway of Stanford University has performed more heart transplants than any other heart surgeon. NOVA explores those extraordinary days in 1968-69 when it appeared that everyone with a scalpel was doing heart transplants, and survival of patients was measured in days.

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NOVA joins chief archaeologist, Ivor Noel Hume, of Colonial Williamsburg, VA, for a fascinating glimpse of the lifestyles of the founders of this country, complete with detailed reconstructions of houses, stores, workshops, gardens, taverns and palaces.

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Each Sunday edition of the New York Times consumes 153 acres of trees. The paper packs, napkins, paper cups and packing used by McDonald's gobble up 315 square miles of trees every day. NOVA asks if, at this rate, trees can remain a renewable resource.

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Author Isaac Asimov joins NOVA in the retelling of the remarkable story of the discovery of the structure of DNA. James Watson and his ex-colleague Francis Crick exchange memories of the events which led to their winning the race for the structure of the gene.

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There's one place on earth where no one will ever catch a cold. And the freezing waters are so bitter there that a fish has been discovered to have developed its own anti-freeze. NOVA explores Antarctica—the coldest desert in the world.

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Every year, some 5,000 babies are born in the US with spina bifida, a congenital abnormality of the central nervous system. NOVA explores the mystery of what causes spina bifida and raises the issues of whether heroic measures should be taken to preserve the life of severely malformed babies.

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NOVA explores the mysterious ecosystem of the desert: a snowstorm; a lashing summer monsoon; and the emergence—in a pool created only minutes before—of a pair of adult spadefoot toads. Toads who had been waiting beneath the sand for a year for this brief and fortuitous moment to procreate the next generation...

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The last fourteen years have been a revolution in our understanding of our place in the stars, the Solar System. Beginning in 1961 with a Russian spacecraft flying to Venus, quickening with the Apollo manned missions to the Moon, it came of age in the Spring of 1974, when there were six spacecrafts traveling simultaneously from the Earth to the planets. NOVA looks at the era of manned and unmanned exploration of the Solar System.

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What do singer Peggy Lee, New York Jets Quarterback Joe Namath and Congressman Richard Nolas have in common? They all practice a ritual called TM—Transcendental Meditation. NOVA examines the recent phenomenal success of the TM movement in America.

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NOVA takes viewers into the world of Joey Deacon, 54 years old and a spastic since birth. Joey has lived most of his life in institutions, unable to communicate with anyone until he met Ernie Roberts. The docudrama recreates Joey's story, with remarkable performances by two spastic actors portraying him as a boy and as a young man. Joey and Ernie themselves appear in the final sequences.

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It is now possible to predict earthquakes. At least two successful predictions have already been made in the United States; and the NOVA crew was present and filming while a third prediction was being formulated. NOVA looks at why earthquakes occur, how predictions are made, the threat they pose to cities at risk, and examines the advantages and disadvantages of making an earthquake a predictable disaster.

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Fish is an excellent source of protein; it could help ease the growing international food shortage. But in 1972 the total world fish catch dropped. NOVA explores the possible reasons for this decline.

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For over a thousand years the Mayan civilization grew and flourished in the rain forests of Central America. Discovered and finally destroyed by the Spanish Conquistadors, it was lost again until explorers brought it to light in the 19th century. Eric Thompson, an archaeologist who has had a 45 year love affair with the Maya, takes NOVA on a pilgrimage through the Mayan world, visiting, on the way, all the great ruined cities he has known for half a century.

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Since the Industrial Revolution, bigger has been better. NOVA profiles E.F. Schumacher, the author of Small is Beautiful, who thinks that enough is enough; that the time has come for technology to return to a human scale, where the ability to create is returned from the machine to people.

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How likely is it that a terrorist group will steal plutonium intended for nuclear reactor fuel and put together a blackmail weapon of unprecedented power in the shape of a homemade atom bomb? That question is posed by Theodore Taylor, former A and H bomb designer at Los Alamos, in a recent book, The Curve of Binding Energy. NOVA investigates just how easy it would be to design a bomb using unclassified information.

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High in the Hoggar Mountains, in the exact center of the Sahara desert, lives Sidi Mohammed and his family: children, grandchildren, cousins and a few former slave women. Their environment, one of the most ungenerous on earth, provides them with almost nothing. NOVA examines the changing lifestyle of Sidi Mohammed.

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NOVA explores T.D. Lynsenko's rise to power in the Soviet Union in the early 20th century, and how it affected plant genetic research in the USSR.

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NOVA profiles two very different scientists: Richard Feynman, a theoretical physicist, at the pinnacle of his career—a Nobel prizewinner; and Richard Lewontin, a biologist and highly regarded population geneticist from Harvard University.

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Has the case against DDT been proven? A strange question, perhaps, to be asking one year after the US has banned the insecticide, but NOVA dares to ask. Tracing the history of DDT from its discovery through its banning in the States, NOVA asks whether America overreacted with its total ban of this once acclaimed "wonder" chemical.

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Have you ever sensed that your body reacts differently at different times of the day? NOVA examines the best and worsetimes for work, good times for sex drives and your body's most reactive time of day for alcohol consumption.

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NOVA joins a group of English biologists living literally on a platform in the middle of the Red Sea, who for several years have been studying the crown-of-thorns starfish, notorious for the devastation it has wrought on the coral reefs of Australia and the Pacific.

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Just why did Cro-Magnon man living in France's Dordogne Valley some 15,000 years ago take time out from the desperate business of survival to paint pictures in inaccessible corners of his cave dwellings? NOVA joins French and American archeologists as they piece together the lifestyle of these hunters of the last great Ice Age, and try to interpret the meaning of their cave art.

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NOVA joins a team of U.S. Geological Survey scientists on a mission to find out just how San Francisco Bay works: its physics, its chemistry and its biology.

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Most of us spend one-third of our lives in a state of which we understand remarkably little—some people sleep for only a few minutes a night, and function perfectly well, while others declare that eight hours isn't enough. NOVA explores traditional notions about how much sleep we need; looks at effects of the sleeping pill, and, perhaps the most baffling of all aspects of sleep—dreaming.

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Smashing matter into ever smaller pieces in an attempt to find its fundamental building blocks has produced a confused nightmare of particles. NOVA looks at this on-again, off-again story—one of sciences's most mysterious—and, one of the most expensive, involving some of the biggest machines in the world.

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Many insects and some mammals use smell as a primary means of communication. NOVA explains how, for example, the entire economy of an ant's nest is organized by smell, and how some moths use smell for population control—an ability we is now beginning to understand.

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Who were the people that built the first cities -- complete with apartment blocks -- in North America? They were the Anasazi Indians, who lived in the Southwest for some eight or nine thousand years and who then, in about 1300 AD, abruptly abandoned their cities and apparently disappeared. NOVA traces the steps of this ancient sophisticated culture.

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Nuclear fusion offers the promises of an unlimited, clean source of energy. But achieving fusion has proved one of the most difficult and elusive goals of the physicist. NOVA tells the story of the twists and turns and the international competition along the road toward the achievement of fusion; and details the recent breakthroughs which seem at last to have brought it within reach.

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When Paul Kammerer committed suicide in 1926, it was taken by most of his fellow biologists as a tacit admission of guilt that he had faked his experiments purporting to show the inheritance of acquired characteristics. Arthur Koestler joins NOVA in an in-depth examination of Kammerer's infamous experiment.

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Washoe is a chimp more like a person: she talks with her hands. NOVA visits with Washoe and her teachers—Professor Allen Gardner and Dr. Trixie Gardner—to learn more about this unusual animal.

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The advance of medicine depends inevitably on the testing of experimental procedures on human volunteers from either the healthy or the sick. Yet such procedures are often dangerous, and may not be of direct benefit to the subject. NOVA examines how individuals' interests are safeguarded, and asks, under what circumstances experiments should be conducted on children.

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Birds migrate in search of perpetual summer, sometimes traveling as much as 20,000 miles every year. NOVA uses radar to track and identify migrating birds that travel at night, focusing on how they coose routes tat avoid bad weather and make the best of prevailing winds—information that can aid meteorologists.

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In 1054 AD, the Chinese recorded the explosion of a star so bright that it lit the sky for three weeks, even during the day. It was the explosion of a dying star that was bigger than our sun. NOVA explores this mysterious explosion that led to the discovery of Crab Nebula.

Watch NOVA season 1 episode 6 (S01E06)

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Medicine was transformed in the 19th century by the discovery of anesthesia; surgery, until then hasty, bloody and completely unable to deal with internal disorders, subsequently took its place in the front rank of medical practice. This NOVA docudrama depicts the pioneers of medicine.

Watch NOVA season 1 episode 5 (S01E05)

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How does a primitive nomadic tribe of the Amazon basin cope with the encroachment of Western settlers? NOVA looks at both sides of the story, revealing the misunderstandings between the two cultures.

Watch NOVA season 1 episode 4 (S01E04)

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Does life exist outside this planet? The Viking lander will set down on Mars in July 1976 to try to find out just that. NOVA explores how life started on Earth and examines the Viking Lander being built in its germ-free room before starting its long journey.

Watch NOVA season 1 episode 3 (S01E03)

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NOVA explores the impact of whaling and the goods it produces for the industry, verses the grace and beatury of this intelligent mammal of the sea.

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NOVA explores the mighty Colorado River which today has become the life-blood of the Southwest, providing water and electricity to the farms and cities of California, Nevada, and Arizona. The program examines the political expediency and technological over-optimism that has led to some major miscalculations of the river's capacity.

Watch NOVA season 1 episode 1 (S01E01)

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NOVA premieres on public television with a behind-the-scenes look at the making of a nature film. Oxford Scientific Films Unit shows how it tackles such problems as filming a wood-wasp laying its egg inside trees, the hatching of a chick and the courtship rituals of the stickleback.

How to watch NOVA online without downloading

  1. Watch NOVA online only at TVRill for free. No download or registration required.
  2. NOVA first started airing on Mar 03, 1974 and we have updated 1 out of 551 aired episodes and we will add more as they air.
  3. Please note that new NOVA episodes can take upto 2 days to be updated after their first airing date.
  4. To watch NOVA episodes, select the season and episodes from the list above and the proper episode information will appear on the right side (or below in case of mobile devices), click on the watch now button below the episode info to go to episode page, and watch the respective episode without downloading.

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