THEMIS Image of the Day, June 18, 2019. Wind is one of the most active processes on Mars today. This image was taken near Hooke Crater on the margin of Argyre Planitia.
These micro-tornados, which form similarly to their counterparts on Earth, move along the surface between the hills and valleys of the crater ejecta, picking up the surface dust and leaving the dust-free darker rock exposed.
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