Mars Express May Have Discovered Ancient Supervolcano on Red Planet

ESA’s Mars Express orbiter has captured an image of what appears to be the remains of an ancient supervolcano. The image was taken on 26 November 2014, and focuses on the Siloe Patera feature in the Arabia Terra region of Mars. Siloe Patera comprises two large nested craters, close to the center of the image. [...] —> Read More