“America’s first space station,” Skylab, was launched in 1973 on the last Saturn V rocket flown. The mission, coming on the heels of the final Apollo Moon landing, concluded nine months later in February 1974 with the successful return of a third astronaut crew that spent a then-record 84 days in space.
A decades-old ambition to make multiday, ultralong-endurance flight a reality is quietly solidifying within the U.S. military after a series of failures and false starts.