PIA25794: Glacial (Ice) or Lava Flow?
 Target Name:  Mars
 Is a satellite of:  Sol (our sun)
 Mission:  Mars Reconnaissance Orbiter (MRO)
 Spacecraft:  Mars Reconnaissance Orbiter (MRO)
 Instrument:  HiRISE
 Product Size:  2880 x 1800 pixels (w x h)
 Produced By:  University of Arizona/HiRISE-LPL
Other products from ESP_076502_2100
 Full-Res TIFF:  PIA25794.tif (8.207 MB)
 Full-Res JPEG:  PIA25794.jpg (1.221 MB)

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The geologic setting and latitude here suggest this is a glacial (ice-rich) flow, but the surface is broken into plates like many lava flows on Mars. An image was targeted here to get a better look.

At the meter-scale resolution of HiRISE, we see a hummocky surface with boulders and craters plus some wind-blown landforms that seems consistent with either the glacial or lava hypothesis. This is a common result: getting a higher-resolution image doesn't necessarily provide more information about large-scale processes, instead providing information about how the surface has been modified.

The map is projected here at a scale of 50 centimeters (19.7 inches) per pixel. (The original image scale is 50.2 centimeters [19.8 inches] per pixel [with 2 x 2 binning]; objects on the order of 151 centimeters [59.4 inches] across are resolved.) North is up.

This is a stereo pair with ESP_077333_2100.

The University of Arizona, in Tucson, operates HiRISE, which was built by Ball Aerospace & Technologies Corp., in 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.

Image Credit:
NASA/JPL-Caltech/University of Arizona

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