www.snopes.com:

"The fanciful notion that the six Apollo lunar missions launched by the USA between 1969 and 1972, during which a total of twelve men landed and walked on the moon, were elaborate hoaxes staged in top secret desert locations and movie studios here on Earth has been a familiar aspect of popular culture and conspiracy theory since the first moon landing in 1969.

"Perhaps because Americans' confidence in their government was at a low ebb due to America's controversial military involvement in Vietnam, perhaps because people felt threatened by the rapid onrush of technological progress the space program represented, or perhaps just because some people enjoy the furtive thrill of disseminating the "secret knowledge" encapsulated in conspiracy theories, the moon landings have become a locus for a cynical distrust of government and disbelief in America's tremendous achievements in space exploration."

What I don't understand is how anyone can seriously question it. For pete's sake, does anyone think that all of the hundreds of people involved in the space program are in on it and are all keeping the great secret? Not to mention the reporters, both domestic and foreign, who would LOVE to break a story like that.

Let it die, already.