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
Larry Taylor (geochemist) of Washington, and finally a Fulbright Fellowship at the Max-Planck-Institüt für Kernphysik in Heidelberg, Germany. In December of 1972, Taylor was offered to be in the “back room” of Johnson Space Center during the Apollo 17 mission where he had the opportunity to directly advise astronauts on their extravehicular activities on the Moon. Subsequently, Taylor became very close friends with Harrison Schmitt, the last man to step on the lunar surface and the sole geologist to ever reach the Moon. The two would collaborate throughout their careers with Schmitt playing an influential role in helping Taylor develop the Department of