NASA MRO HiRISE Images - August 21, 2013

Status Report From: Mars Reconnaissance Orbiter HiRISE
Posted: Wednesday, August 21, 2013

August 21, 2013 

o Small Crater within Pollack Crater Containing Light-Toned Material   

  This observation shows a small crater in within the much larger Pollack Crater containing light-toned material. 

o Lava Against an Impact Crater in Elysium Planitia     

  In places where we see smaller ridges in the lava, they have steep faces that retain less dust and look rocky. 

o Looking for Changes in Dust Drifts West of Alba Mons   

  This image was intended to search for surface changes after three Mars years in a dust-covered region west of the Alba Mons volcano. 

o Frosted Impact Crater in Late Northern Winter   

  Changing gullies have so far been documented only in the Southern Hemisphere, where a greater thickness of carbon dioxide frost forms in the winter. 

All of the HiRISE images are archived here: 

Information about the Mars Reconnaissance Orbiter is online at The mission is managed by NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology, for the NASA Science Mission Directorate, Washington, D.C. Lockheed Martin Space Systems, of Denver, is the prime contractor and built the spacecraft. HiRISE is operated by the University of Arizona. Ball Aerospace and Technologies Corp., of Boulder, Colo., built the HiRISE instrument. 

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