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

New post on Universe Today Astronomy Cast Ep. 440: Destroy and Rebuild, Pt. 4: Supervolcanoes! by Susie Murph 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. Visit the Astronomy Cast Page to subscribe to the audio podcast! We usually record Astronomy Cast as a live Google+ Hangout on Air every Friday at 1:30 pm Pacific / 4:30 pm Eastern. You can watch here on Universe Today or from the Astronomy Cast Google+ page. Susie Murph | February 14, 2017 at 2:09 pm | Tags: Supervolcanoes | URL: http://wp.me/p1CHIY-ySR Trouble clicking? Copy and paste this URL into your browser:  http://www.universetoday.com/134097/astronomy-cast-ep-440-destroy-rebuild-pt-4-supervolcanoes/