How the Earth Works

Season 1 Episode 2

Asteroid Armageddon

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Aired Unknown Oct 16, 2013 on
7.5
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Episode Summary

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Martin and Liz investigate a giant asteroid impact that may have wiped out the Dinosaurs 65 million years ago. Martin experiences the power of a NASA supergun and Liz follows the geological clues to Mexico where she dives an underground river.
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