I never doubted that men walked on the moon but there are intelligent people who claim it was faked and they have good arguments. They are convinced that it was set up and filmed in a desert somewhere in the southwest. The only thing that made me question it was it seemed to early in the technical know how to have made it happen back then in the 1960s. But I just figured I was wrong about that. Anyway, I believe that it happened but with some mild reservations.