Only 24 astronauts have flown to the Moon, 3 of them twice
NASA has flown 24 astronauts to the Moon between December 1968 and December 1972. Out of them, 12 walked on the Moon while three astronauts were launched twice. While Jim Lovell orbited the Moon on both occasions, Eugene Cernan and John Young landed on their second Apollo missions, with Cernan becoming the last man to leave footprints on the Moon.