Forum member Ewan, otherwise known as Dynamo Duck, found some strange looking craters on the South-East edge of Mare Crisium at Latitude: 12.275° Longitude: 62.1034°. They appear to have unusually high albedo floors and possibly some ejecta of the same high albedo material.
Searching around the area I found some more of these “strange whites.”
|Here are two.
And then they were everywhere.
At the moment they remain a puzzle. They look like bench/concentric craters but why are the floors so “white”? What is this high albedo material and why are there so many of these craters in this region of Mare Crisium?
While we work out the answers here are some NACs for you to peruse showing the “strange whites” under different illumination.