The objective of this observation by NASA's Mars Reconnaissance Orbiter was to examine the edge of impact ejecta from a crater to the north-west of this area (north is up, west is to the left).
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Sunken and Pitted Ejecta

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The objective of this observation was to examine the edge of impact ejecta from a crater to the north-west of this area (north is up, west is to the left). The ejecta visible in the top left of this image seems to be lower than the surrounding surface.

This is unusual because impact ejecta is laid down on top of existing ground. The ejecta also seems to have pits. Perhaps the hot ejecta fell on frozen ground and melted the underlying ice?

HiRISE is one of six instruments on NASA's Mars Reconnaissance Orbiter. The University of Arizona, Tucson, operates the orbiter's HiRISE camera, which was built by Ball Aerospace & Technologies Corp., Boulder, Colo. NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the Mars Reconnaissance Orbiter Project for the NASA Science Mission Directorate, Washington.

Image details

ID#:
PIA18242

Date added:
2014-04-30

Target:
Mars

Mission:
Mars Reconnaissance Orbiter (MRO)

Spacecraft:
Mars Reconnaissance Orbiter (MRO)

Instruments:
High Resolution Imaging Science Experiment (HiRISE)

Rating:



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416

Full-Res TIFF:
PIA18242.tif (15.56 MB)

Full-Res JPG:
PIA18242.jpg (1.03 MB)

Image credit:
NASA/JPL-Caltech/Univ. of Arizona