See Dr. Charles "Chuck" Wood's comments in LPOD 2006.05.14.
Endymion super-imposes a similar but older unnamed crater that's marked in
the below image.The mare lava flooded floor of Endymion features small craterlet
impacts and shows some light ejecta rays of the young crater Thales on the dark
lava basalt. Remainings of a central peak typical for an impact crater of this
size are presumably buried by the mare material flooding.
The image foreground shows a remarkable 'CC' concentric crater with an inner
'ball-bearing' like rim concentric to the outer rim. It's not understood today
how these crater structures form but it's likely that they are not very lucky
double impacts exactly at the same location. There are hints that the inner
rim does not form at the same time as the outer rim during the initial crater
forming impact, see LPOD 2006.08.02.
View of the image above marked in a area map, note the perspective foreshortening of the image background due to the moon sphere's curvature:
Map: Lunar Earthside, Farside, and Polar Charts (LMP) Series
Publisher: Aeronautical Chart Information Center, United States Air Force
Scale: 1:5,000,000
©Lunar and Planetary Institute, 2006
Equipment used for imaging
