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Mars Odyssey Epithermal Neutron Data overlayed on MGS/MOLA Topography Data (Flyover, Viking True Color)
Mars Odyssey's Gamma-ray spectrometer (GRS) instrument has detected large amounts of Hydrogen on Mars, particularly near the south pole. This is an indication that water ice exists in the upper meter of these areas of the Martian surface. The epithermal neutron data ranges from 0 to about 12 counts per second. The blue areas indicate high concentrations of Hydrogen (low epithermal neutron counts). A series of animations was generated to support a Space Science Update (SSU) on the topic. These animations were match-rendered with unsmoothed, smoothed, and viking true-color data.

Flyover of Mars true color globe    Flyover of Mars true color globe

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   352 x 240   MPEG-1   4 MB


How to play our movies

True color view of Mars at the equator    True color view of Mars at the equator

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   2560 x1920   TIFF   3 MB



True color view of Mars at the south pole    True color view of Mars at the south pole

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   2560 x1920   TIFF   7 MB



True color view of Mars at the equator    True color view of Mars at the equator

View the image:
   2560 x1920   TIFF   7 MB



True color view of Mars at the north pole    True color view of Mars at the north pole

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   2560 x1920   TIFF   6 MB


Video ID: SVS2002-0020 *
Animator: Greg Shirah
Studio: SVS
Date Completed: May 28, 2002
Duration: 1000 frames, 33.333333 seconds
Scientist: William Boynton (University of Arizona), James Garvin (NASA/HQ)
Instrument: Mars Odyssey/GRS
Datasets: MGS/MOLA, Viking
Keywords: Mars
DLESESubject: Space science, Physical geography
Data Collected: MGS/MOLA: 1997/09/15-2001/06/30, Viking: 1976



Please give credit for this visualization to NASA/Goddard Space Flight Center Scientific Visualization Studio


*Please note: the SVS does not fulfill requests for copies of the tapes in our library. On some of our animation pages, there is a direct link to a video distribution service from which tapes, handled by the Public Affairs Office (PAO)/Goddard TV, including some of our animations may be ordered. General information on this service can be found here.


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