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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.

And inverted...

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