Large, bright-toned ripples in the sand within Proctor Crater on Mars. Courtesy/NASA/JPL-Caltech/University of Arizona
Scientists show for the first time that large sand ripples known as megaripples are migrating on Mars, according to a new study. The findings suggest Mars’s dusty surface might be much more active than previously suspected, offering clues about the Red Planet’s poorly understood atmosphere.
Sand dunes and ripples are typical features of deserts on both Earth and Mars. Megaripples are distinguished from smaller ripples by the coarser sand grains that gather
Nation World Environment Science