A false-color view of Eden Patera, a possible supervolcano on Mars.

A false-color view of Eden Patera, a possible supervolcano on Mars.

Image courtesy ASU/GSFC/JPL/NASA

Supervolcanoes Rocked Early Mars

Big calderas point to early magma outbursts that shaped the red planet.

ByDan Vergano
Published October 2, 2013