Branched Valleys West of Idaeus Fossae
HiRISE PICTURE OF THE DAY: 21 SEPTEMBER 2019

Branched Valleys

These small, branched valleys at the edge of an old impact crater are located west of Idaeus Fossae. Many valleys occur all over Mars that reveal an extensive ancient history of liquid water erosion.



Layers in Danielson Crater
This image shows sedimentary rock and sand within Danielson Crater, located in the southwest Arabia Terra region of Mars. The rock was formed millions or billions of years 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.

Beautiful Mars, Beautiful Book
It’s the most beautiful book of Mars ever: “Mars: The Pristine Beauty of the Red Planet” is a unique look at the Red Planet by the most powerful camera sent to another world. Order your copy today!