Do Not Adjust Your Television Set
HiRISE PICTURE OF THE DAY: 8 DECEMBER 2021
Do Not Adjust Your Television Set

This example of fuzzy ground is from what Mars geologists have called the Medusae Fossae Formation. The origin of this material is still debated but most favor the idea that this is a thick pile of volcanic ash that has been blown here by the wind.



Ice-Rich Terrain of the Northern Plains
At high resolution the surface is divided by polygonal fractures, spaced a few meters apart.

Boundary Condition Controls on the High-Sand-Flux Regions of Mars
It is often unclear where and why sediment is mobile on today’s Mars. A new paper takes a deeper look.