Skylab was a Human space station active in the late 20th century. The station was placed into Earth orbit by the United States of America with NASA overseeing the facility. The solar-powered Skylab could house three astronauts. These astronauts were transported to the facility and were returned to Earth by a command/service module from the Apollo program.
In 2063, the assignment patch for the Skylab Program was displayed in the Crash-n-Burn Bar in Bozeman, Montana. (Star Trek: First Contact) Later, in 2143, the patch for Skylab 2 was seen in the 602 Club. (ENT: "First Flight")