Joseph R. Tanner

Tanner flew aboard the Space Shuttle Atlantis on the STS-66, November 3–14, 1994, performing the Atmospheric Laboratory for Applications and Science-3 (ATLAS-3) mission. ATLAS-3 was the third in a series of flights to study the Earth's atmosphere composition and solar effects at several points during the Sun's 11-year cycle. The mission also carried the CRISTA-SPAS satellite that was deployed to study the chemical composition of the middle atmosphere and retrieved later in the mission. Tanner logged 262 hours and 34 minutes in space and 175 orbits of the Earth.

Tanner joined the University of Colorado Boulder's Aerospace Engineering Science Department as a senior instructor in September 2008. He assists with senior project course and master's project course. He is also a self-employed aerospace systems consultant.

Tanner's fourth mission, STS-115 aboard Space Shuttle Atlantis launched on September 9, 2006. On September 13, he participated in the 5 hour 26 min space walk to connect the P3/4 truss to the ISS. STS-115 returned to Earth on September 21, 2006. A photo that he took during his space walk was later listed on Popular Science's photo gallery of the best astronaut selfies.

Tanner's third mission was STS-97 aboard Space Shuttle Endeavour (November 30 to December 11, 2000), the fifth Space Shuttle mission dedicated to the assembly of the International Space Station. While docked to the station, the crew installed the first set of U.S. solar arrays, in addition to delivering supplies and equipment to the station's first resident crew. Tanner performed three space walks totaling 19 hours 20 minutes. Mission duration was 10 days, 19 hours, 57 minutes, and covered 4.47 million miles (7,190,000 km).

Tanner performed two space walks as a member of the STS-82 crew to service the Hubble Space Telescope (HST) in February, 1997. The STS-82 crew of seven launched aboard Space Shuttle Discovery on February 11 and returned to a night landing at Kennedy Space Center on February 21. During the flight the crew completed a total of 5 space walks to improve the science capability of the telescope and replace aging support equipment, restoring HST to near perfect working condition. The crew boosted HST's orbit by 8 nautical miles (15 km) before releasing it to once again study the Universe. Tanner's two space walks totaled 14 hours and 01 minutes. The flight orbited the earth 150 times covering 4.1 million miles (6,600,000 km) in 9 days, 23 hours, 37 minutes.

After he graduated from the University of Illinois in 1973 as an engineer, Tanner joined the U.S. Navy. He received his Naval Aviator wings in 1975, before serving as an A-7E pilot with Light Attack Squadron 94 (VFA-94) aboard the USS Coral Sea. He finished his active service as an advanced jet instructor pilot with Training Squadron 4 (VT-4) in Pensacola, Florida.

Joseph Richard "Joe" Tanner (born January 21, 1950) is an American instructor at the University of Colorado Boulder, mechanical engineer, a former naval officer and aviator, and a former NASA astronaut. He was born in Danville, Illinois. He is unusual among astronauts as he did not have a background in flight test nor did he earn any advanced academic degrees. Typically those who did not do military flight test have an M.D. or Ph.D., if not a master's, whereas Tanner's path to becoming an astronaut followed operational military flying and then into NASA for operational jet training before being selected into the NASA Astronaut Corps in 1992, following an unsuccessful application in 1987.

Tanner was born January 21, 1950, in Danville, Illinois. He is married with two children, sons William and Matthew. Tanner is an Eagle Scout from Troop #19 (Danville, IL) with the Boy Scouts of America. Following graduation from Danville High School in 1968, he attended and graduated with a Bachelor of Science degree in Mechanical Engineering from the University of Illinois at Urbana-Champaign in 1973. His hobbies include: swimming, camping, mountaineering, spending time with his family.