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Blown away on Earth and Mars Wind-driven sand can “completely change” rock shapes in a relatively short amount of
time geologically speaking, said Sullivan, as he showed images of rocks that have been
shaped by aeolian abrasion during his LPSC presentation. From the Coachella Valley on
Earth (left) to a crater named Fram on Mars (right), winds have visibly altered the shape
and textures of rocks. Rob Sullivan (left) / NASA / JPL-Caltech / Cornell / ASU