NASA Mars Reconnaissance Orbiter HiRISE Images – October 12, 2011

– Sinuous Ridge in Malea Planum http://hirise.lpl.arizona.edu/ESP_023578_1130

Although largely dust covered, this sinuous unit may mark the location of a stream that once flowed across the plains.

– Artynia Catena http://hirise.lpl.arizona.edu/ESP_023597_2260

One of the reasons for suggesting this target was to look for evidence of pyroclastics around the rim of the pits.

– Scarp in Aurorae Chaos http://hirise.lpl.arizona.edu/ESP_023660_1710

Aurorae Chaos is a large irregular depression consisting of jumbled uplifted blocks, knobs, mounds and isolated mesas known as chaotic terrains.

– Mars Sand Dune Changes http://hirise.lpl.arizona.edu/ESP_024025_2005

Now that HiRISE has been returning data since 2006, it has been able to document changes in the position of sand dunes and ripples on the surface.

All of the HiRISE images are archived here: http://hirise.lpl.arizona.edu/

Information about the Mars Reconnaissance Orbiter is online at http://www.nasa.gov/mro. 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.