NASA’s Mars Reconnaissance Orbiter (MRO) has revealed that movement in sand dune fields on the Red Planet occurs on a surprisingly large scale, about the same as in dune fields on Earth. Back-and-forth blinking of this two-image animation shows movement of a sand dune on Mars. Image credit: NASA/JPL-Caltech/Univ. of Arizona/JHU-APL. Click here for more…






