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Today's VIS image shows a small portion of Olympia Undae. Olympia Undae is a large dune field that dominates the plains along part of the north polar cap. This dune field surrounds 1/3 of the north polar cap and is the largest of several dune fields that encircle the pole. This VIS image was collected during summer. It is during this season that winds are able to move sand sized particles, slowly modifying the dunes.

Orbit Number: 80435 Latitude: 80.777 Longitude: 225.9 Instrument: VIS Captured: 2020-02-01 08:36

Please see the THEMIS Data Citation Note for details on crediting THEMIS images.

NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Science Mission Directorate, 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.