This 3D image, taken by the High Resolution Stereo Camera (HRSC) on board ESA’s Mars Express spacecraft, shows the Biblis Patera volcano, located in the western part of the Tharsis rise on Mars.

The volcano is 170 kilometres long, 100 kilometres wide and rises nearly three kilometres above its surroundings. The bowl-shaped ‘caldera’ has a diameter of 53 kilometres and extends to a maximum depth of roughly 4.5 kilometres. North is to the right.