The moon landing is just one of many sources of debate among space conspiracy theorists. This image gallery wades into the discussion on this theory and a few others.
History books say that Yuri Gagarin was the first man in space, but was he? Next you can see pictures of the Majestic-12.
Were Harry S. Truman and NASA director James Webb part of a secret government agency called Majestic-12? Next you can learn about the moon landing hoax.
Neil Armstrong in a training simulation preparing for the lunar landing. Or was he just setting up a camera on a soundstage?
Model of the Russian satellite Sputnik I on display at the Soviet pavilion during the 1958 World's Fair.
A Mayan calendar column in Quirigua, Yucatan peninsula, Mexico, Aug. 13, 1929.
Did the U.S. government hide evidence of a crashed alien spacecraft in Roswell, N.M.?