Supervolcanoes May Have Rocked Early Mars
Scientists find huge craters that don't look like asteroid strikes
By Newsy, a Newser Video Partner
Posted Oct 3, 2013 12:33 PM CDT

(Newser) – It’s been a busy few weeks for Mars news: the discovery of water in the soil, the news that there’s less and less evidence for current life, and now a new theory that the planet might be home to some of nature’s most destructive volcanoes. We already know Mars had some big volcanoes, but they're nothing compared to the supervolcanoes that might have helped shape the planet’s surface.