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Comets: Prophets of Doom

The history of comet study, including NASA missions, and what it reveals about the Earth and the solar system. Also: comet theories.

English
  • Originally Aired September 26, 2006
  • Runtime 45 minutes
  • Content Rating United States of America TV-PG
  • Network History
  • Created November 19, 2014 by
    Administrator admin
  • Modified November 19, 2014 by
    Administrator admin