evidence: Former astronaut Buzz Aldrin, one of three men who took part in the Apollo 11 moon landing mission, was at USC Tuesday night to hear presentations by students on why the U.S. should attempt to return to the moon. [...] The comments from Curry are not the first time Aldrin has heard his moon-walking credentials challenged: in 2002, Aldrin punched documentary filmmaker Bart Sibrel after he cornered the astronaut at a Beverly Hills event and asked him to swear on the Bible that he walked on the moon. [...] As of 1999, roughly 6 percent of Americans said they believe that the Apollo moon landing was faked, according to a Gallup poll. The theory rests on the belief that Cold War-era pressure to beat Russia to the moon led NASA to fake an elaborate mission on a Hollywood-style sound stage, well within the Earth's atmosphere.