HiRISE: Powerful winds and streaming sands

tumblr_p2212dv7lJ1rlz4gso1_1280Powerful winds and streaming sands. This observation shows sand dunes within the Hellespontus region of Mars. The sand appears to come from the layered mesas and knobs, features that have been eroded by powerful winds. In fact the origin of the sand could be far away, but the dunes form behind the topographic obstacles. The dune morphology indicates strong winds blowing from east to west (from right to left).

Beautiful Mars series.

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