Apollo 17 Challenger

Apollo 17 was the last crewed mission to the Moon, and the only one to include a professional geologist — Harrison Schmitt. The Lunar Module Challenger landed in the Taurus-Littrow valley, chosen for its mix of highland mountains and dark valley floor. Astronauts Eugene Cernan and Schmitt conducted three EVAs totaling 22 hours, collected a record 110.52 kg of samples, and drove the LRV for 35.9 km. Schmitt discovered orange volcanic glass beads, evidence of ancient fire fountain eruptions.