Portions of the Martian surface are pictured, shot by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter showing many channels from 1 meter to 10 meters wide on a scarp in the Hellas impact basin on Mars in this photograph taken, January 14, 2011 and released by NASA March 9, 2011.
NASA/JPL-Caltech/Univ. of Arizona/Reuters