Northern Plains Crater Modification
HiRISE PICTURE OF THE DAY: 21 MARCH 2023
Northern Plains Crater Modification

This appears to be a terraced crater among a cluster of smaller expanded craters. A high resolution image should provide some information about local ice and crater expansion. The terrace likely indicates the base of the ice in which expanded craters are growing. We also want to take a detailed look at boulders and polygons.



Ridges in Cydonia Mensae
The ridge is made of material more resistant to erosion and, considering the craters on its flanks, was formed long ago.

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.