Avalanches draw pat­terns on Mars

Science Illustrated - - SCIENCE UPDATE -

The Mars Re­con­nais­sance Or­biter cap­tured a dust avalanche, which has trav­elled down a hill in Mars' whis­per-thin at­mos­phere. The dark colour is due to the fact that the dust has been re­moved, bar­ing the ground, while the sur­round­ings re­main cov­ered in dust. Sci­en­tists do not know ex­actly what caused the 1-km-long avalanche.

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