Starting at the rim of the crater Lichtenberg B, impact melt flowed and formed a channel, pushing boulders aside in the process. LROC NAC M120257109R, image width is 430 m, incidence angle is 57° [NASA/GSFC/Arizona State University].
Lichtenberg B crater, located at 33.3°N, 61.5°W in northern Mare Procellarum, is a young lunar crater with a sharp rim, ejecta rays, and impact melt. Along the south rim, impact melt formed channels before cooling enough to come to a rest and solidify. In the Featured Image it appears that the flow of impact melt pushed boulders towards the edges of the flow, leaving behind an outline of its path. Other ejecta from the crater may have also played a role in forming the channel, since it is unclear if the amount of impact melt seen in the image is enough to have carved out the channel.
LROC WAC context of Lichtenberg B. The red box shows the location of the Featured Image NAC. The flows are located on the southern edge of the rim of Lichtenberg B [NASA/GSFC/Arizona State University].
An expanded view of today's Featured Image. The blue arrow points to the first part of the flow, where the channel is ~30 m wide. The white arrow points to the ridge of boulders that form the sides of the channel. The red arrow points to where the flow ends and where the impact melt is topographically high, no longer a channel [NASA/GSFC/Arizona State University].