PIA22455: Dunes in Nectaris Montes
This image from NASA's Mars Reconnaissance Orbiter (MRO) shows some of these on the slopes of Nectaris Montes within Coprates Chasma on Mars. Sand dunes in Valles Marineris can be impressive in size, with steep slopes that seem to climb and descend.
 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  
Information: 		 Other products from ESP_053739_1650 
 Full-Res TIFF:  PIA22455.tif (15.56 MB)
 Full-Res JPEG:  PIA22455.jpg (598.3 kB)  

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The map is projected here at a scale of 50 centimeters (19.7 inches) per pixel.
[The original image scale is 52.4 centimeters (20.6 inches) per pixel (with 2 x 2 binning); objects on the order of 157 centimeters (62.8 inches) across are resolved.] North is up.

This image from NASA's Mars Reconnaissance Orbiter (MRO) shows some of these on the slopes of Nectaris Montes within Coprates Chasma. Sand dunes in Valles Marineris can be impressive in size, with steep slopes that seem to climb and descend.

The brighter bedforms are inactive while the bigger dunes move over the landscape, burying and exhuming the surface.

This is a stereo pair with ESP_054029_1650.

The University of Arizona, Tucson, operates HiRISE, which was built by Ball Aerospace & Technologies Corp., 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/Univ. of Arizona

Image Addition Date:
2018-05-14