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Ridges in Isidis Planitia
HiRISE PICTURE OF THE DAY: 7 NOVEMBER 2025

Ridges in Isidis

The objective of this observation is to study the transition area where the density of pitted cones changes significantly. Isidis Planitia is an impact basin where volcanic and fluvial/glacial landforms are abundant and where interaction of volcanic materials with water/ice likely took place.



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.