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Seasonal Changes on Mars: Ancient Martian Civilization Evidence jf3809jv
Thanks to JPL/NASA/ MALlN/ASU/ ESA for this original Mars image.
The original NASA Mars image can be viewed at http://www.msss.com/moc_gallery/e07_e12/images/E11/E1102281.html
If this image shows the dethawing of dunes in the Martian polar region, it looks very different than the dethawing process in many NASA images.
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