The Writing is on the Wall
HiRISE PICTURE OF THE DAY: 23 NOVEMBER 2025
The Writing is on the Wall

These U-shaped ridges along this crater’s interior wall provide clues to an ice-rich past on Mars.



HiRISE Image of Exocomet 3I/ATLAS
On 2 October 2025, MRO turned away from Mars to image 3I/ATLAS, only the third interstellar object ever observed passing through our solar system!

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.

A Look at a Steep North Polar Scarp
The image reveals relatively dark streaks down the steep slope, so landslide activity has already started in this area of Mars.