While we are all familiar with the conspiracy theory that the Apollo moon landings were faked, here are a few moon conspiracies that you may not have known. Some of these are more far out there then faking a moon landing (or are they?) What is your favorite moon conspiracy theory?

In their book "Dark Mission: The Secret History of NASA," authors Richard Hogland and Mike Bara claim that glass or crystal-like ruins can be seen on the lunar surface. The towering structures are said to be over a mile long. Photos of the ruins, they say, were photographed by Apollo astronauts and withheld from the public by a NASA employee for over 30 years.

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