Astronaut Group 3 was the third group of astronauts selected by NASA. Their selection was announced in October 1963. Fourteen astronauts made up Group 3. Four died in training accidents before they could fly in space. All of the surviving ten flew in the Apollo program; five also flew Gemini missions. Aldrin, Bean, Cernan and Scott walked on the Moon. They are the only ones of the first 19 NASA astronaut groups to have no members at all fly on the Space Shuttle.