The deep blue colors on this map of the south pole of Mars from NASA's Mars Odyssey spacecraft show where a low intensity of epithermal neutrons is found.
NASA's 2001 Mars Odyssey spacecraft provided this view of the south pole of Mars in intermediate-energy, or epithermal, neutrons. Soil enriched in hydrogen is indicated by the deep blue colors on the map, where a low intensity of epithermal neutrons is found. The view shown here of the south pole of Mars comes from measurements made during the first week of Mars Odyssey's mapping, in February 2002, using the neutron spectrometer instrument.

NASA's Jet Propulsion Laboratory, Pasadena, Calif., manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The neutron spectrometer was supplied by the Los Alamos National Laboratory,Los Alamos, N.M., and is one of the instruments in the gamma ray spectrometer instrument suite, which was supplied by the University of Arizona, Tucson. Lockheed Martin Astronautics, Denver, is the prime contractor for the project, and developed and built the orbiter. See http://grs.lpl.arizona.edu for more information. Odyssey mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.

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