Granular Flows in a Copernican Crater

Sometimes flows of material on the Moon are made of light-colored material, sometimes they’re made of dark-colored material. This is definitely an example of the latter! This is a small portion of a Narrow-Angle Camera image taken by the Lunar Reconnaissance Orbiter, showing detail of “low-reflectance” granular material sliding down the wall of a crater…

Bounce and Flow

Dark flows run down the slopes of Stevinus A crater on the Moon in this detail of an image from the LRO’s camera. Large boulders that have rolled downhill appear to have interrupted the flow in at least one spot in this image. It’s still not exactly known whether these features in Stevinus A are…