Ridge near Craters North of Mamers Valles
HiRISE PICTURE OF THE DAY: 30 JULY 2025

Not the Spine of the World

The objective of this observation is to determine the nature of a ridge located between two (geologically) fresh impact craters near Mamers Valles on Mars. The surfaces on either side of the ridge appear very different from each other.



HiRISE Instrument News
Since July 23, 2023, HiRISE observations have lacked data from the RED4 CCD due to a hardware issue, creating a gap in the middle of image products and reducing the color swath to 1 CCD width. We are investigating the hardware issue and may be able to acquire some RED4 data in the future.

Icy Cliffs at the Martian North Pole
In the spring, we also sometimes see avalanches pouring down these cliff faces and this image was taken to search for more of them.