Paris, France (SPX) Mar 2016 - The surface of the planet Mars tilted by 20 to 25 degrees 3 to billion years ago. This was caused by a massive volcanic structure, the Tharsis volcanic which is the largest in the Solar S
Frozen ice disc on Mars in a crater on the Vastitas Borealis, a broad plain that covers much of Mars& far northern latitudes. The crater is wide, with a maximum depth of about The image was taken by the High Resolution Stereo Camera on ESA& Mars Express.
This sweeping view by ESA’s Mars Express extends from the planet’s south polar ice cap and across its cratered highlands to the Hellas Basin (top left) and beyond. - Credit: ESA/DLR/FU Berlin, CC BY-SA IGO
The Dotted Dunes of Mars. As spring dawns on the Northern Hemisphere of Mars, dunes of sand near the poles begin to defrost. Thinner regions of ice typically thaw first revealing sand whose darkness soaks in sunlight and accelerates the thaw.