Some official NASA
pictures archived by the LPI (The Lunar and Planetary Institute in Houston), which is “a research institute that provides support services to NASA and the planetary science community” ( [link to www.lpi.usra.edu] show a strange and big object on the far side of the Moon. LPI is “is managed by the Universities Space Research Association (USRA)”

Apollo 17 shots at:

[link to www.lpi.usra.edu]
[link to www.lpi.usra.edu]

A number of Apollo 15 shots of the same object are available here:
[link to www.lpi.usra.edu]
[link to www.lpi.usra.edu]
[link to www.lpi.usra.edu]
[link to www.lpi.usra.edu]
[link to www.lpi.usra.edu]