Ridges in Nilosyrtis Mensae
HiRISE PICTURE OF THE DAY: 11 JULY 2025
Ridges in Nilosyrtis Mensae

The presence of different ridge populations, varying in shape, distribution, stratigraphic position, and surface texture, offers an opportunity to understand the evolution of the landscape, which serves as a representative model for the broader region.



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.

Ridges in Lycus Sulci
Much of the rocks in this area have been subjected to erosion by the wind, so the surface we see today was originally buried deep underground.