Landslides in Valles Marineris
NASA/JPL/University of Arizona
Landslides in Valles Marineris
ESP_022632_1670  Science Theme: Mass Wasting Processes
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Valles Marineris is the largest canyon in the Solar System: if superposed on a map of the United States, it would stretch all the way from Los Angeles to Washington, D.C., possibly even up to New England! So this image is just a very small portion of the system.

This observation shows us gully-like landslides (called "mass wasting") on the interior layered deposits of Valles Marineris. These include alcoves and channels, which are also visible in PSP_004396_1675. However, that image quality was very poor due to a dust storm, so a re-image can give us fine-scale shapes and sizes.

This caption is based on the original science rationale.

Written by: HiRISE Science Team   (20 July 2011)

This is a stereo pair with ESP_031124_1670.

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Acquisition date
26 May 2011

Local Mars time:
14:18

Latitude (centered)
-12.668°

Longitude (East)
313.870°

Range to target site
264.4 km (165.2 miles)

Original image scale range
26.4 cm/pixel (with 1 x 1 binning) so objects ~79 cm across are resolved

Map projected scale
25 cm/pixel and North is up

Map projection
Equirectangular

Emission angle:
5.0°

Phase angle:
39.1°

Solar incidence angle
34°, with the Sun about 56° above the horizon

Solar longitude
299.3°, Northern Winter

North azimuth:
97°

Sub-solar azimuth:
345.0°
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All of the images produced by HiRISE and accessible on this site are within the public domain: there are no restrictions on their usage by anyone in the public, including news or science organizations. We do ask for a credit line where possible:
NASA/JPL/University of Arizona



Postscript
For information about NASA and agency programs on the Web, visit: http://www.nasa.gov. NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, Calif., manages the Mars Reconnaissance Orbiter for NASA's Science Mission Directorate, Washington. Lockheed Martin Space Systems is the prime contractor for the project and built the spacecraft. The HiRISE camera was built by Ball Aerospace and Technology Corporation and is operated by the University of Arizona. The image data were processed using the U.S. Geological Survey’s ISIS3 software.