
Sand dunes be damned...
That's worm-sign, I tell you, worm sign!
NASA's Mars Reconnaissance Orbiter has found the wind blows much more fiercely across the surface of the Red Planet than previously thought - reshaping sand dunes at around the same rate as those on Earth. Martian sand dunes rippling Martian sand dunes rippling. Credit: NASA/JPL-Caltech/ Univ. of Arizona/JHU-APL Boffins …