Spacecraft History
Perhaps unknown to many, the Apollo program was planned as a series of methodical steps, leading up to the first landing on the Moon. Each mission type, labeled A-J, built on the success of the previous steps towards the initial goal of a G-Mission, landing a man on the Moon, achieved by Apollo 11, and then moving on to further goals, culminating in the J-Missions, which saw a 3 day stay on the Moon and the use of the Lunar Rover. Apollo 17, crewed by Eugene Cernan, Ronald Evans, and Harrison Schmitt (a Geologist), was the third and final J-Mission, after Apollo 15 and 16, and was the last manned mission to the Moon.