MARS RECONNAISSANCE ORBITER HIRISE IMAGES March 26, 2008 o North Polar Layered Deposits, Covered by Seasonal Frost http://hirise.lpl.arizona.edu/PSP_007493_2650 o Large Polygons in Deuteronilus Mensae http://hirise.lpl.arizona.edu/PSP_007492_2265 o Northern Hemisphere Ice Cap http://hirise.lpl.arizona.edu/PSP_007392_2650 o Slab of Layered Material in Aureum Chaos http://hirise.lpl.arizona.edu/PSP_007006_1765 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.