NASA Mars Reconnaissance Orbiter HiRISE Images – February 26, 2014
– Equatorial Gullies http://hirise.lpl.arizona.edu/ESP_034864_1825
Gully-like landforms, or ravines, are most common in the middle latitudes of Mars, but also occur in polar and equatorial latitudes.
– Frost in Dune Shadows http://hirise.lpl.arizona.edu/ESP_034922_1385
The low sun angle creates large shadows from these dunes, making for a dramatic picture.
– Dunes Streaming through Hills http://hirise.lpl.arizona.edu/ESP_034948_1720
This dramatic image show dark rippled bodies of sand, sometimes in the form of dunes, streaming through Ganges Chasma.
– Craters in an Icy Surface http://hirise.lpl.arizona.edu/ESP_035189_2240
The crater in the center of this image is unusual because there is a wide, flat bench between the outer rim and the inner section, making it appear somewhat like a bullseye.
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.