Apollo 20 Alien Ship Flyover

Was there a joint American-Soviet secret series of Apollo space missions, in which both countries collaborated to reach an ancient cigar shaped alien spacecraft and city which had in prior missions been spotted on the dark side of the Moon? What else was found and what about the supposed 6 finger alien being found inside? Is she some how linked to the Nephilim? I am making no claim as to whether these videos are real or not, I am simply providing these videos as stimulus for dialog. Whether real or not, official NASA photos are available on the website of the Lunar and Planetary Institute (LPI, in Houston), which is a research institute that provides support services to NASA and the planetary science community. These Apollo 15 photos seem to assert the possibility of this so called ship.