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Mars Well-Speckled Polar Dunes

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Mars Well-Speckled Polar Dunes

Post  easynow on Wed Feb 22, 2012 3:15 pm




Mars Well-Speckled Polar Dunes




2,560px × 1,920px - http://www.uahirise.org/images/wallpaper/2560/ESP_025579_2580.jpg



ESP_025579_2580 - Image Credit: NASA/JPL/University of Arizona

These barchan (crescent-shaped) sand dunes are found within the North Polar erg of Mars. This type of dune provides a great record of the wind environment when they formed and moved: barchan dunes' horns point downwind.

Link - http://www.uahirise.org/ESP_025579_2580





barchan (crescent-shaped) sand dune




1,433px × 1,136px - http://www.uahirise.org/images/2012/details/cut/ESP_025579_2580.jpg









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