The
Apollo program, also known as
Project Apollo, was the third United States
human spaceflight program carried out by the
National Aeronautics and Space Administration (NASA), which accomplished landing the first humans on the
Moon from 1969 to 1972. First conceived during
Dwight D. Eisenhower's administration as a three-man spacecraft to follow the one-man
Project Mercury which put the first Americans in space, Apollo was later dedicated to
President John F. Kennedy's national goal of "landing a man on the Moon and returning him safely to the Earth" by the end of the 1960s.
Kennedy's goal was accomplished on the Apollo 11 mission when astronauts Neil Armstrong and Buzz Aldrin landed their Lunar Module (LM) on July 20, 1969, and walked on the lunar surface, while Michael Collins remained in lunar orbit in the Command/Service Module (CSM), and all three landed safely on Earth on July 24. Five subsequent Apollo missions also landed astronauts on the Moon, the last in December 1972. In these six spaceflights, twelve men walked on the Moon.
Apollo ran from 1961 to 1972, and was supported by the two-man Gemini program which ran concurrently with it from 1962 to 1966. Gemini missions developed some of the space travel techniques that were necessary for the success of the Apollo missions. Apollo used Saturn family rockets as launch vehicles. Apollo/Saturn vehicles were also used for an Apollo Applications Program, which consisted of Skylab, a space station that supported three manned missions in 1973–74; and the Apollo–Soyuz Test Project, a joint Earth orbit mission with the Soviet Union in 1975.
The Apollo program succeeded in achieving its goal of manned lunar landing, despite the major setback of a 1967 Apollo 1 cabin fire that killed the entire crew during a pre-launch test. After the first landing, sufficient flight hardware remained for nine follow-on landings, with a plan for extended lunar geological and astrophysical exploration. Budget cuts forced the cancellation of three of these. Five of the remaining six missions achieved successful landings, but the Apollo 13 landing was prevented by an oxygen tank explosion in transit to the Moon, which disabled the command spacecraft's propulsion and life support. The crew returned to Earth safely by using the Lunar Module as a "lifeboat" for these functions.
John Watts Young (September 24, 1930 – January 5, 2018) was an American
astronaut,
naval officer and
aviator,
test pilot, and
aeronautical engineer. He became the
ninth person to walk on the Moon as Commander of the
Apollo 16 mission in 1972. Young enjoyed the longest career of any astronaut, becoming the first person to fly six space missions over the course of 42 years of active
NASA service. He is the only person to have piloted and commanded four different classes of spacecraft:
Gemini, the
Apollo command and service module, the
Apollo Lunar Module, and the
Space Shuttle.
Before becoming an astronaut, Young received his Bachelor of Science degree with highest honors in Aeronautical Engineering from the Georgia Institute of Technology and joined the U.S. Navy. After serving at sea during the Korean War he became a naval aviator, and graduated from the U.S. Naval Test Pilot School (Class 23), setting several world time-to-climb records as a test pilot. Young left the Navy in 1976 with the rank of captain.
In 1965 Young flew on the first crewed Gemini mission, and then commanded the 1966 Gemini 10 mission. In 1969 during Apollo 10, he became the first person to fly solo around the Moon. He then walked on the Moon and drove the Lunar Roving Vehicle on the Moon's surface during Apollo 16, and is one of only three people to have flown to the Moon twice.
Young also commanded two flights of Space Shuttle Columbia: STS-1 in 1981, the Space Shuttle program's first launch, and STS-9 in 1983. Young served as Chief of the Astronaut Office from 1974 to 1987, and retired from NASA in 2004.