Fractured impact melt with a probable impact melt pit inside the crater Louville D. LROC NAC image M142604009R, image width 490 m [NASA/GSFC/Arizona State University].

A melt pit inside an unnamed crater. Image width is 480 m, NAC frame M176082220L [NASA/GSFC/Arizona State University].

Fissures and associated pit-chains on Aitken crater floor. LROC NAC M128148929L, image width is 580 m [NASA/GSFC/Arizona State University].

Along the embayed Eddington crater rim is an ~1.5 km dome that may be an ancient volcano with a summit pit crater. LROC NAC M148618400R, image width is 960 m [NASA/GSFC/Arizona State University].

A single depression from a larger sinuous chain of pits located at 34.6°N, 43.5°W in NAC frame M102443238R. This chain may host uncollapsed lava tubes between the depressions that are suitable for human habitation. Image is 1.5 km wide and light is incident from the left at an angle of 78° [NASA/GSFC/Arizona State University].

The LROC NAC acquired an oblique view of the Marius Hills pit with just the right angle to reveal an overhang! Pit is about 65 meters in diameter, M137929856R [NASA/GSFC/Arizona State University].

Spectacular high Sun view of the Mare Tranquillitatis pit crater revealing boulders on an otherwise smooth floor. Image is 400 meters wide, north is up, NAC M126710873R [NASA/GSFC/Arizona State University].

Small fractures in the mare floor of Tsiolkovskiy Crater are a departure from the usual scene of smooth mare pitted with impact craters. As the mare cools, fractures like these can form, or these fractures might have formed due to changes in the morphology of the Tsiolkovskiy impact crater over time. Image width is 580 m; NAC Image M130822373R, incidence angle 73° [NASA/GSFC/Arizona State University].