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NOVA - Season 44 Episode 28

NOVA - Season 44 Episode 28 - Documentary TV Shows 55:14. story about 66 million years ago, a seven-mile-wide asteroid collided with Earth, triggering a chain of events that coincide with the end of the dinosaurs. But experts have long debated exactly what happened when the asteroid struck and how the giant beasts met their end. Now, scientists have uncovered compelling new clues about the catastrophe.

Released: Mar 03, 1974

Runtime: 55:14

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Networks: PBS

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