After Congress stopped the Moon landings, NASA needed a new direction. Using a leftover Saturn V rocket, the giant rocket that sent men to the Moon, they created a space station that orbited above the Earth. This space station was called Skylab. Skylab was very big on the inside, even bigger than a small house. Skylab was visited by Apollo spacecrafts. There were three missions to Skylab. Each of them carried important experiments. The last crewed mission, Skylab 4, spent 84 days, 1 hour, 15 minutes, 30 seconds, longer than any space mission had spent until 1977. Skylab broke up in the atmosphere in 1979.