NASA Mars Reconnaissance Orbiter HiRISE Images – October 19, 2011

– Mysterious Color-Changing Dust Devil Track http://hirise.lpl.arizona.edu/ESP_023327_2065

Suction created by the air rotating in a whirlwind removes a thin layer of light-colored dust from the Martian surface, leaving behind dark lines in its path.

– Possible Newest Segment of Cerberus Fossae http://hirise.lpl.arizona.edu/ESP_023798_1895

Floods of water and lava are thought to have emanated from the larger fossae nearby, perhaps forming the Athabasca channel and later filling it with lava.

– The Millipedes of Mars? http://hirise.lpl.arizona.edu/ESP_023829_1350

Dunes are particularly suited to comprehensive planetary studies because they are abundant over a wide range of elevations and terrain types.

– Lobate Flow Features in the Northwest Hellas Rim http://hirise.lpl.arizona.edu/ESP_024000_1425

Lobate features such as these are indicative of viscous flow, reminiscent of terrestrial glaciers and have long-been interpreted as evidence for subsurface ice.

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.