The National Aeronautics and Space Administration is an independent agency of the executive branch of the United States federal government responsible for the civilian space program, as well as aeronautics and aerospace research. NASA have many launch facilities but most are inactive. The most commonly used pad will be LC-39B at Kennedy Space Center in Florida.
Skylab 4 (also known as SL-4 or SLM-3) was the third and the last crewed mission to the first US orbital space station Skylab. The mission began on November 16, 1973, 14:01:23 UTC with the launch of a three-person crew. Crew members were the Commander Gerald P. Carr, Science Pilot Edward G. Gibson and William R. Pogue. During their 83-day stay on the station, crew performed Earth and solar observations. The mission ended successfully with the splashdown in the Pacific Ocean on February 8, 1974, 15:16:53 UTC.
Skylab was the first United States space station, launched by NASA, occupied for about 24 weeks between May 1973 and February 1974. It was operated by three separate three-astronaut crews: SL-2, SL-3 and SL-4. Major operations included an orbital workshop, a solar observatory, Earth observation, and hundreds of experiments.