Mars Odyssey Mission THEMIS: Feature Image: Blue Polar Dunes In False Color (Released 19 January 2005)

Vital Statistics
Location: 84.5N, 206.6E	Released: 2005-01-19
Image Size: 20.5 x 15.4 km, 1024 x 768 px
Resolution: 20m	Instrument: VIS

Image Credit: NASA/JPL/ASU

Image Context:
Context image for 20050119a

Wide Context:
Wide context image for 20050119a

Context image credit: NASA/JPL/MOLA
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Detailed information on this image is available at the THEMIS Data Releases website.

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

This is an afternoon image of the far northern reaches of Mars' polar cap, taken in the late nothern summer season, after most of the carbon dioxide frost has vaporized. Ice/frost will typically appear as bright blue-white in color; dust mantled ice will appear in tones of red/orange. The small dunes in this image are "bluer" than the rest of the layered ice/dust units to the left. They are surmised to be composed chiefly of basaltic sands.