MARS RECONNAISSANCE ORBITER HIRISE IMAGES December 12, 2007 o Basal Exposure of the South Polar Layered Deposits http://hirise.lpl.arizona.edu/PSP_006243_0975 o Wrinkle Ridges in Hesperia Planum http://hirise.lpl.arizona.edu/PSP_006223_1600 o Fractures and Grooves in South Polar Layered Deposits http://hirise.lpl.arizona.edu/PSP_006151_0975 o Sand and Rock in Meridiani Planum http://hirise.lpl.arizona.edu/PSP_006148_1820 o Complex Folded Terrain on the Floor of Hellas Basin http://hirise.lpl.arizona.edu/PSP_006133_1410_1715 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.