- Press Release
- Nov 30, 2022
Mars Odyssey THEMIS Image: Frosted Crater
|This image, located near 70.6 N and 102.95 E, displays a frosted crater in the|
Martian northern hemisphere. This image was taken during the northern spring as
the CO2 ice cap starts to sublimate and recede. Exposures of the underlying
surface are prominent around topographic features because of the exposure they
provide. Features that are more exposed to the relatively warm air will be
sublimated away more quickly. South facing slopes in the northern hemisphere
are also exposed to more sunlight, which also helps to sublimate the frost.
This is why the north rim of the large crater has more exposures of the
relativley dark underlying material than the southern (north facing) wall.
There are also what appears to be small slides of material on the crater walls.
This may be sand that becomes unstable as the frost cover thins.
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[Source: ASU THEMIS Science Team]
NASA’s Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA’s Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.
Image Credit: NASA/JPL/Arizona State University
|Longitude||102.7E (257.3W)|| ||Resolution (m)||19|
|Image Size (pixels)||2953×1082|| ||Image Size (km)||56.1×20.6|