HiRISE PICTURE OF THE DAY: 23 APRIL 2026
Gullies with Extensive Debris Aprons
These gullies in Terra Sirenum have very extensive and detailed debris aprons. This image will be useful in distinguishing repeated deposition events that helps us understand more about gully formation processes. Also interesting is that one of the debris aprons has a crater superposed on it. These could be older than most gullies, which might explain the volume of the debris aprons.