Snapshot: Frost-covered sand dunes decorate Mars' north poleWhen you picture winter on Earth, you probably conjure up images of beautiful snow-covered trees and icicles dangling from houses. But on Mars, winter decorates the martian surface in truly otherworldly ways, as recently documented by NASA’s Mars Reconnaissance Orbiter (MRO).
NASA/JPL-Caltech/University of Arizona
T.me/astronomy
