Dark Slope Streaks

This VIS image shows part of two unnamed craters in Terra Sabaea. Numerous dark streaks mark the slopes of the inner rims. There are several suggested mechanisms to form these features. Two of the mechanisms are that the dusty surface has been altered to reveal darker rock beneath from motion of downward moving dust, or the surface is darkening by fluid or other surface staining. Orbit Number: 94648 Latitude: 7.06669 Longitude: 40.9664 Instrument: VIS Captured: 2023-04-16 14:54 https://photojournal.jpl.nasa.gov/catalog/PIA26051