File:PIA14451 - Lace on Mars.jpg

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English: Some seasonal ice on Mars is transparent so that the sunlight penetrates to the bottom of the ice. Heat from this sunlight can turn the ice directly into a gas in a process called sublimation and this gas can scour channels in the loose dirt under the ice.

Channels formed by sublimation of a layer of seasonal dry ice are so dense in this area that they look like lace. Gas flow erodes channels as it escapes to the surface of the overlying seasonal ice layer seeking the path of least resistance.

The University of Arizona, Tucson, operates HiRISE, which was built by Ball Aerospace & Technologies Corp., Boulder, Colo. 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.
Date 21 June 2016 (published 21 December 2016)
Source Catalog page · Full-res (JPEG · TIFF)
Author NASA/JPL-Caltech/Univ. of Arizona
Location on Mars80° 46′ 37.2″ S, 155° 58′ 15.6″ E View this and other nearby images on: Google Mapsinfo
This image or video was catalogued by Jet Propulsion Laboratory of the United States National Aeronautics and Space Administration (NASA) under Photo ID: PIA14451.

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Mars Reconnaissance Orbiter mission
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Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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current22:31, 31 January 2017Thumbnail for version as of 22:31, 31 January 20172,880 × 1,800 (1.35 MB)PhilipTerryGraham (talk | contribs)User created page with UploadWizard