Apollo program a total of over 20 hours EVA. Apollo 17 was the last of the Apollo program, landing in the Taurus–Littrow region in December 1972. Eugene Cernan commanded Ronald E. Evans and NASA's first scientist-astronaut, geologist Dr. Harrison H. Schmitt. Schmitt was originally scheduled for Apollo 18, but the lunar geological community lobbied for his inclusion on the final lunar landing. Cernan and Schmitt stayed on the surface for just over three days and spent just over 23 hours of total EVA. Source: "Apollo by the Numbers: A Statistical Reference" (Orloff 2004) The Apollo program returned over of lunar rocks and
United States Astronaut Hall of Fame Seven. In addition to being the first American astronauts, they set several firsts in American spaceflight, both auspicious and tragic. Alan Shepard was the first American in space and later became one of the twelve people to walk on the Moon. John Glenn was the first American to orbit the Earth and after his induction went on, in 1998, to become the oldest man to fly in space, aged 77. Gus Grissom was the first American to fly in space twice and was the commander of the ill-fated Apollo 1, which resulted in the first astronaut deaths directly related to