NASA Mars Reconnaissance Orbiter HIRISE Images September 7, 2011

o Gullies and Lobate Material in a Crater in Nereidum Montes http://hirise.lpl.arizona.edu/ESP_023173_1405

This crater has gullies on its southwest-facing walls and rim, as well as and what appears to be two separate instances of ear-shaped material associated to its interior gullies.

o Iazu Crater http://hirise.lpl.arizona.edu/ESP_023237_1775

These crater walls, which are well exposed,may provide a regional context for the Opportunity rover’s studies of Endeavour Crater.

o Carbon Dioxide Ice in the Late Summer http://hirise.lpl.arizona.edu/ESP_023464_0945

For most of the year these walls are covered with bright frost, but they defrost and show their true colors at the end of the summer.

o Fan and Dust Devil in Deuteronilus Mensa http://hirise.lpl.arizona.edu/ESP_023671_2270

The dust devil is an example of the ongoing processes that continue to shape the surface of Mars.

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.