On December 7, 1972, Apollo 17 lifted off from the Kennedy Space Center in Florida. The crew was Commander Eugene Cernan, Command Module Pilot Ronald Evans, and Lunar Module Pilot Harrison Schmitt.

Americans first walked on the moon in 1969 with Apollo 11. Apollo 17 would be the last trip to the moon in that decade. Apollo 17 was the first night launch of a U.S. human spaceflight and the final manned launch of a Saturn V rocket. It was a "J-type mission" which included three days on the lunar surface, extended scientific capability, and the third Lunar Roving Vehicle (LRV). While Evans remained in lunar orbit in the Command/Service Module (CSM), Cernan and Schmitt spent just over three days on the moon in the Taurus–Littrow valley and completed three moonwalks, taking lunar samples and deploying scientific instruments. Evans took scientific measurements and photographs from orbit using a Scientific Instruments Module mounted in the Service Module.

Cernan, Evans and Schmitt were originally the back up crew for Apollo 14. Future Apollo missions were cancelled with Apollo 18 being cancelled in September 1970.

Apollo 17 marked the end of a program that had 12 Men walk on the surface of the moon. The astronauts drove 34 kilometers in the lunar rover, and returned 108 kilograms of Lunar rocks back to earth for study.

More Info: en.wikipedia.org