NASA is the US agency responsible for the space program, as well as aeronautics and aerospace research.
NASA, an acronym of National Aeronautics and Space Administration, was established in 1958 by President Eisenhower.
Since its establishment, NASA has led most US space exploration efforts which has included the Apollo moon-landing missions and the Space Shuttle.
The Apollo program was an initiative which was spearheaded by President Kennedy in response to the perceived Soviet lead in the space race. Costing more than $20 billion in 1960s money, Apollo was one of the most expensive scientific programs in history. Its goal was to land a man on the moon by the end of the 1960’s, a feat which was achieved by Neil Armstrong in 1969.