MARS RECONNAISSANCE ORBITER HIRISE IMAGES January 24, 2008 o Southern Dunes and Spiders http://hirise.lpl.arizona.edu/PSP_006538_1035 o Layered Sediments in Terby Crater http://hirise.lpl.arizona.edu/PSP_006475_1525 o Splotches and Channels Near Sisyphi Montes http://hirise.lpl.arizona.edu/PSP_005424_1075 o Polar Pit Gullies http://hirise.lpl.arizona.edu/PSP_005410_1115 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 t he University of Arizona. Ball Aerospace and Technologies Corp., of Boulder, Colo., built the HiRISE instrument.