was America's first experimental space station. Some of 's program objectives were: To prove that humans could live and work in space for extended periods, and to expand our knowledge of solar astronomy well beyond Earth-based observations. made much use of Saturn and Apollo equipment. Through the use of a "dry" third stage of the Saturn V rocket, the station was completely made as a workshop area before launch. Crews visited Skylab and returned to earth in the Apollo spacecraft. THE FLIGHTS Skylab's 1st unmanned mission May 14, 1973 ....