Proposed origin of Didymos surface features

Proposed origin of geological features observed on Didymos:  Didymos's triangular ridge (left most panel), and observed smooth region, and likely older and rough 'highland' region (left-mid panel) can be explained through a combination of slope processes controlled by elevation (mid-right panel), and spin-up related disruption affects that Didymos likely underwent to form Dimorphos (left panel).