A gorgeous image showing sand dunes on Mars was released this week by NASA. In the picture, the dunes have an elongated crescent shape. Their shape is why they are known as "barchan dunes." NASA says ...

We’re hovering above Earth and then traveling billions of light years away this week. First, let’s consider our home planet’s life-sustaining atmosphere. Crew members aboard the International Space ...

On the west (left) side of this image from NASA’s Mars Reconnaissance Orbiter, fairly textbook-looking barchan sand dunes sit atop the bedrock. Barchan dunes pointing in the opposite direction are ...

Barchan dunes are iconic crescent‐shaped landforms that arise in environments dominated by unidirectional winds and limited sand availability. Their evolution is determined by a complex interplay ...

This observation shows a small sand dune field on the floor of Newton Crater, an approximately 300-kilometer wide crater in the Southern Hemisphere of Mars. The image shows both dome and barchan dunes ...

Researchers have been studying the dynamics of how crescent-shaped sand dunes are formed. Known as barchans, these formations are commonly found in various sizes and circumstances, on Earth and on ...

Check out this neat timelapse of winds whipping the sand making up the barchan dunes on Mars. https://gizmodo.com/barchan-dunes-on-mars-1557347813 https://gizmodo.com ...

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 ...