Sand Dunes Are Raining Across The Martian Landscape

It's raining dunes! Well, no, not really, but these olivine-rich sand dunes on Mars really do look like classic cartoon drawings of raindrops sliding across the landscape. » 1/08/15 10:07pm 1/08/15 10:07pm

The Ancient Draa of Mars are Epic Waves of Sand

The Juventae Chasma on Mars contains dunes of all sizes, from the smallest ripples through the largest draa towering hundreds of meters tall. » 6/05/14 2:00pm 6/05/14 2:00pm

Barchan Dunes on Mars

These dunes are a fleet of Star Fleet communicator badges (combadge), flying in formation across the Martian surface. The geomorphology of why this happens has nothing to do with Star Trek or transporter beams, and everything to do with aerodynamics. » 5/02/14 8:00am 5/02/14 8:00am

Uh, what the hell are these v-shaped formations doing on Mars?

These objects are startlingly reminiscent of Star Trek's Federation insignia — but they're geological features inside a large crater on Mars. It's a phenomenon, says NASA, that also explains why migratory birds fly in a v-shaped formation. » 2/19/14 4:40pm 2/19/14 4:40pm