Mars: Ice Block Avalanche | NASA MRO

The HiRISE camera oboard NASA's Mars Reconnaissance Orbiter (MRO) has been re-imaging regions first photographed in 2006 through 2007, six Mars years ago. This long baseline allows us to see large, rare changes as well as many smaller changes.

One of the most actively changing areas on Mars are the steep edges of the North Polar layered deposits. This image shows many new ice blocks compared to an earlier image in December 2006.

MRO Imagery: Captured 319 km above the surface, less than 1 km across
Black and white images are 5 km across; enhanced color images are 1 km.

The University of Arizona, Tucson, operates HiRISE, which was built by Ball Aerospace & Technologies Corp., Boulder, Colorado. NASA's Jet Propulsion Laboratory, a division of Caltech in Pasadena, California, manages the Mars Reconnaissance Orbiter Project for NASA's Science Mission Directorate, Washington.

Credit: NASA/JPL-Caltech/University of Arizona
Narrator: Tre Gibbs
Caption Credit: Alfred McEwen
Duration: 40 seconds
Release Date: June 27, 2018
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