PIA25704: Dunes in Hellas
 Target Name:  Mars
 Is a satellite of:  Sol (our sun)
 Mission:  Mars Reconnaissance Orbiter (MRO)
 Spacecraft:  Mars Reconnaissance Orbiter (MRO)
 Instrument:  HiRISE
 Product Size:  2880 x 1800 pixels (w x h)
 Produced By:  University of Arizona/HiRISE-LPL
Other products from ESP_075654_1385
 Full-Res TIFF:  PIA25704.tif (15.56 MB)
 Full-Res JPEG:  PIA25704.jpg (1.105 MB)

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This beautiful dune field is located along the western margin of Hellas Planitia, the floor of a giant depression in the Southern Hemisphere of Mars.

Scientists on the HiRISE team take multiple pictures of the same dune fields on the Red Planet to see if they can detect subtle changes that would indicate if the dunes are moving. Some Martian dune fields do shift and move under the present day environmental conditions, but at a rate that is typically much slower than dunes move on Earth.

The map is projected here at a scale of 25 centimeters (9.8 inches) per pixel. (The original image scale is 26.0 centimeters [10.2 inches] per pixel [with 1 x 1 binning]; objects on the order of 78 centimeters [30.7 inches] across are resolved.) North is up.

The University of Arizona, in Tucson, operates HiRISE, which was built by Ball Aerospace & Technologies Corp., in Boulder, Colorado. NASA's Jet Propulsion Laboratory, a division of Caltech in Pasadena, California, manages the Mars Reconnaissance Orbiter Project for NASA's Science Mission Directorate, Washington.

Image Credit:
NASA/JPL-Caltech/University of Arizona

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