Surface Features East of Hellas Planitia
HiRISE PICTURE OF THE DAY: 18 SEPTEMBER 2025
Surface Features East of Hellas Planitia

The objective of this observation is to examine a variety of features. There are different surface materials in the image footprint. One material has hollows, while other material looks like it once flowed. This image has the potential to help us understand how different surface materials form and evolve.



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.

Complicated Lava Cooling
This HiRISE image shows a classic example of platy-ridged lava. Scientists think that this is the same as a lava type called “rubbly pahoehoe” on Earth.