Volcanic blocks, Cerberus Palus, Mars. Coloured satellite image of disrupted terrain in Cerberus Palus, near the equator of Mars. This region is covered with ancient lava. The blocks are formed when solidified lava is disrupted and broken up by lava that is still flowing. Image obtained by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter (MRO) on 23rd March 2009. The width of this image is roughly 1.2 kilometres across.
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