Ep. 440: Destroy and Rebuild, Pt. 4: Supervolcanoes! - a podcast by 365DaysOfAstronomy.org
from 2017-03-24T19:47:31
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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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