rocketstem.org
Cascading dunes visible in a Martian crater
A breathtaking new mosaic from ESA’s Mars Express shows a stunning swirling field of dark dunes cascading into sunken pits within a large impact crater. The mosaic was created from two images and focuses on the 108 km-wide Rabe crater. The region is 320 km to the west of the large Hellas impact basin, about halfway ...