Martian landscape. This HiRISE image shows a crater in the Tyrrhena Terra region and a set of star dunes visible on the western edge of a small crater within the larger target crater. Star dunes form when sand is blown by winds coming from multiple directions, common in craters. This results in intersecting dunes, forming a polygonal, or 'star' pattern. The dune sands are most likely made of basalt. Possible clay-bearing material is probably within the surrounding bedrock. Image shows terrain less than 5 km (3 mi) across. A unique optimised version of NASA imagery. Credit: NASA/JPL/UArizona
Size: 10240px × 4310px
Location: Mars, Tyrrhena Terra
Photo credit: © NASA / digitaleye / Alamy / Afripics
License: Licensed
Model Released: No
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