Mars impact crater or supervolcano?

 Credit:  ESA/DLR/FU Berlin, CC BY-SA 3.0 IGO

Credit: ESA/DLR/FU Berlin, CC BY-SA 3.0 IGO

 

These images from ESA's Mars Express show a crater named Ismenia Patera on the Red Planet. Its origin remains uncertain: did a meteorite smash into the surface or could it be the remnants of a supervolcano? Read more...

Jennie Wadsworth