NASA’s new Mars picture Sand Dunes

Posted: July 13, 2012 in Current Topics, Photography
Tags: , ,

This view from the High Resolution Imaging Science Experiment (HiRISE) camera on NASA’s Mars Reconnaissance Orbiter shows two classes of aeolian bedforms within Proctor Crater. The relatively bright, small ridges are ripples. From their study on Earth, and close-up examination by the MER rovers (roving elsewhere on Mars), we know that ripples are composed of fine sand (less than 200 microns in diameter) or fine sand coated with coarser sand and granules.Image Credit: NASA/JPL-Caltech/University of Arizona.
NASA’s new Mars picture Photos | Pictures – Yahoo! News India.

NASA's new Mars Photos

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