Astronomy Cast

Wizzard Media

Science & Medicine, Natural Sciences

Chart Positions

Science & Medicine 25
Natural Sciences 10

Astronomy Cast brings you a weekly fact-based journey through the cosmos.


Ep. 220: Mass Extinction Events

February 14th, 2011

Episode 252 of 460 episodes

The Earth seems like a safe place, most of the time. But we have evidence of terrible catastrophes in the ancient past. Times when almost all life on Earth was wiped out in a geologic instant. What could have caused so much devastation? And will something like this happen again?

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