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Watch NOVA Season 36 Episode 14 Online

  • 6.8/10
  • COUNTRIES: United States of America
  • Subtitles: English

An examination over whether a comet struck the Great Lakes region 12,900 years ago, and whether it caused the extinction of such mega-creatures as the woolly mammoth and the saber-toothed cat in North America. Also included is the discovery of nano-diamonds which are created by heat and objects from space.