Generations of craters in Arabia Terra
Generations of craters in Arabia Terra
In this colour image, acquired using the High Resolution Stereo Camera (HRSC), operated on board ESA’s Mars Express spacecraft by the German Aerospace Center (DLR), a collection of craters of varying ages and at different stages of erosion can be seen. One very large impact crater some 70 kilometres in diameter, with a fairly steep, raised rim, dominates the left (southern) half of the image. A large field of black dunes has formed on the crater floor. The dark material in these dunes probably originates from the erosion of basalt, a dark volcanic rock, and was carried there by the wind. This image was created using data acquired by the high-resolution nadir channel and the colour channels of HRSC. North is to the right.