Astronomy Cast Ep. 440: Destroy and Rebuild, Pt. 4: Supervolcanoes!

By Fraser Cain - February 14, 2017 at 2:09 PM UTC | Planetary Science

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There are regular volcanoes, and then there are the supervolcanoes. Massive calderas of hot magma of incomprehensible size. Bad news, these things explode randomly and catastrophically. Worse news, there are a bunch around the Earth.

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