Official NASA Biography - 1997
STS-50, June 25-July 9, 1992, was the first flight of the United States Microgravity Laboratory and the first Extended Duration Orbiter flight. Over a two-week period, the STS-50 flight crew aboard Space Shuttle Columbia conducted a wide variety of experiments relating to materials processing and fluid physics in a microgravity environment. This was the longest Shuttle flight on record, allowing him to log over 331 hours in space.
STS-61, December 2-13, 1993, was the Hubble Space Telescope (HST) servicing and repair mission. During the 11-day flight, the HST was captured and restored to full capacity through a record five space walks by four astronauts. After having traveled 4,433,772 miles in 163 orbits of the Earth, the Space Shuttle Endeavour and her crew returned to a night landing on the runway at the Kennedy Space Center in Florida.
STS-73, Oct. 20 to Nov. 5, 1995, was the second flight of the United States Microgravity Laboratory. The mission focused on materials science, biotechnology, combustion science, the physics of fluids, and numerous scientific experiments housed in the pressurized Spacelab module. In completing his third space flight, Bowersox and his crew orbited the Earth 256 times, traveled over 6 million miles, and logged a total of 15 days, 21 hours, 52 minutes and 21 seconds in aboard Space Shuttle Columbia.
STS-82, Feb. 11-21, 1997, was the second Hubble Space Telescope (HST) maintenance mission. During the flight, the crew retrieved and secured the HST in Discovery's payload bay. In five space walks, two teams installed two new spectrometers and eight replacement instruments, as well as replacing insulation patches over three compartments containing key data processing, electronics and scientific instrument telemetry packages. Following completion of upgrades and repairs, HST was boosted to a higher orbit and redeployed. Mission duration was 9 days, 23 hours, 37 minutes, traveling 3.8 million miles in 149 Earth orbits.
Carried United States Microgravity Laboratory. First extended-duration mission. Payloads: United States Microgravity Laboratory (USML)-1; Orbital Acceleration Research Experiment (OARE); Investigations Into Polymer Membrane Processing (IPMP), Shuttle Amateur Radio Experiment (SAREX)-ll; Ultraviolet Plume Instrument (UVPl) .
Manned seven crew. Hubble repair mission. Conducted the most EVAs (5) on a Space Shuttle Flight to that date. Payloads: Hubble Space Telescope (HST) Servicing Mission (SM) 1, IMAX Camera, IMAX Cargo Bay Camera (ICBC), Air Force Maui Optical Site (AMOS).
Carried USML-2 for microgravity experiments (attached to Columbia). Payloads: United States Microgravity Laboratory (USML) 2, Orbital Acceleration Research Experiment (OARE).
After a spectacular night launch, the Shuttle completed its rendezvous with Hubble Space Telescope on February 13. Over the next four days five spacewalks were undertaken to renovate Hubble.
The Hubble Space Telescope was released back into orbit at 06:41 GMT on February 19. Discovery landed on Runway 15 at Kennedy Space Center at 08:32 GMT on February 21.