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How the Universe Works: Season 2

2x07 Asteroids - Worlds That Never Were
TV-PG

  • 2012-08-23T01:00:00Z on Science
  • 42m
  • United States
  • English
  • Documentary
Asteroids wiped out the dinosaurs and may be back for us but they also built the Earth and may have brought life to its barren surface. Asteroids will shape our future as much as our past and scientists are striving to unlock their secrets.
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