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Killer Floods Preview

Scientists uncover geologic evidence of epic floods that tore through ancient landscapes.

Aired 10/17/2017

NOVA

Killer Floods Preview

Preview: Season 44 Episode 18 | 30sVideo has Closed Captions

Scientists uncover geologic evidence of epic floods that tore through ancient landscapes.

All over the world, scientists are discovering traces of ancient floods on a scale that dwarfs even the most severe flood disasters of recent times. What triggered these cataclysmic floods, and could they strike again? In the Channeled Scablands of Washington State, the level prairie gives way to bizarre, gargantuan rock formations.

Aired 10/17/2017

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