Buzz Aldrin punches moonlanding hoax believer in the face - oops.

CNN interviewed the hosts of the show "Mythbusters" about the conspiracy theorists who believe the Apollo Moon landing was faked, and the their extensive efforts debunking the claims of the Moon landing deniers.

However, buried towards the end of the interview is a gem of video of Buzz Aldrin, famously one of the first astronauts to walk on the Moon, being confronted by one of these moon landing skeptics several years ago. The man angrily calls Aldrin a "coward" and a "liar." Aldrin tells the man to get away from him, and when he refuses, Aldrin promptly punches him in the face.

The conspiracy theorist tried to sue Aldrin but the judge threw out the case.