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
Harrison Schmitt astronauts featured in the documentary "In the Shadow of the Moon". He also contributed to the book "NASA's Scientist-Astronauts" by David Shayler and Colin Burgess. Harrison Schmitt Harrison Hagan "Jack" Schmitt (born July 3, 1935) is an American geologist, retired NASA astronaut, university professor, former U.S. senator from New Mexico, and the most recent living person to have walked on the Moon. He is also the last living crew member of Apollo 17. In December 1972, as one of the crew on board Apollo 17, Schmitt became the first member of NASA's first scientist-astronaut group to fly in space. As