NASA Mars Reconnaissance Orbiter HiRISE Images – June 13, 2012

– Which Crater Came First? http://hirise.lpl.arizona.edu/ESP_020190_1690

This image shows two craters, both approximately the same diameter but quite different in appearance otherwise. Which one might have formed first?

– Sinuous Ridges in Aeolis Planum http://hirise.lpl.arizona.edu/ESP_026462_1740

The eroded ridges are located in a trough, while the well-preserved ridges are at higher elevation.

– Wavy-Looking Layers in the North Polar Layered Deposits http://hirise.lpl.arizona.edu/ESP_027058_2625

These layers near the North Pole of Mars probably record global climate changes, similar to ice ages on Earth.

– Bright Material along the Floor of a Trough in Noctis Labyrinthus http://hirise.lpl.arizona.edu/ESP_027236_1680

This HiRISE image shows an example of the bright material commonly found along the floors of some of the Noctis Labyrinthus troughs.

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.