Icy Flow in a Crater
NASA/JPL/University of Arizona
Icy Flow in a Crater
ESP_049028_2065  Science Theme: Glacial/Periglacial Processes


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The material on the floor of this crater appears to have flowed like ice, and contains pits that might result from sublimation of subsurface ice. The surface is entirely dust-covered today. There probably was ice here sometime in the past, but could it persist at some depth?

This crater is at latitude 26 degrees north, and near-surface ice at this latitude (rather than further toward one of the poles) could be a valuable resource for future human exploration. A future orbiter with a special kind of radar instrument could answer the question of whether or not there is shallow ice at low latitudes on Mars.

Written by: Alfred McEwen (audio: Tre Gibbs)  (8 March 2017)
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Acquisition date
10 January 2017

Local Mars time:
14:07

Latitude (centered)
26.293°

Longitude (East)
39.171°

Range to target site
287.4 km (179.6 miles)

Original image scale range
57.5 cm/pixel (with 2 x 2 binning) so objects ~172 cm across are resolved

Map projected scale
50 cm/pixel and North is up

Map projection
Equirectangular

Emission angle:
2.1°

Phase angle:
56.5°

Solar incidence angle
58°, with the Sun about 32° above the horizon

Solar longitude
296.8°, Northern Winter

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  311.7°
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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
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. The HiRISE camera was built by Ball Aerospace and Technology Corporation and is operated by the University of Arizona.