cliff
January 8, 2014
A Piece of Mars: Bright hills appear to be bearded (or perhaps mustached?). What’s going on? Dark sand has blown over some yellow-crested hills and settled on the downwind side, where the hill blocks enough wind that it can no […]
September 18, 2013
A piece of Mars: All that sand on Mars — where does it come from? It’s often hard to figure that out. Here is a rare case where we can see material shedding from a stack of bright layered rocks, […]
July 3, 2013
A piece of Mars: Topography makes for great landscapes. It also funnels winds, forcing dunes and ripples along particular pathways. Here a cliff (high ground is yellow) has forced low-lying, dark ripples to migrate up a slope at the end […]