Portrait of the prime crew of the Apollo 12 lunar landing mission From left to right they are Commander Charles Pete Conrad Jr Command Module pilot Richard F Gordon Jr and Lunar Module pilot Alan LBean The Apollo 12 mission was the second lunar landing mission in which the third and fourth American astronauts set foot upon the Moon This mission was highlighted by the Lunar Module nicknamed Intrepid landing within a few hundred yards of a Surveyor probe which was sent to the Moon in April of 1967 on a mapping mission as a precursor to landing 22 September 1969 Photo courtesy of NASA