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Nancy Jan Davis (born November 1, 1953) is a former Americanmarker astronaut. A veteran of three space flights, Dr. Davis has logged over 673 hours in space. Dr. Davis is now retired from NASAmarker.

Early life

She was born in Cocoa Beach, Floridamarker, but considers Huntsville, Alabamamarker, to be her hometown.


She graduated from Huntsville High Schoolmarker in 1971, received a bachelor of science degree in applied biology from the Georgia Institute of Technologymarker in 1975 and another in mechanical engineering from Auburn Universitymarker in 1977. She received a master of science degree in 1983 and a doctorate in 1985, both in mechanical engineering at the University of Alabama in Huntsvillemarker.


She is a fellow of the American Society of Mechanical Engineers and a member of Tau Beta Pi, Omicron Delta Kappa, Pi Tau Sigma, and Sigma Gamma Tau honoraries, and the Alpha Xi Delta social sorority.


She has been awarded the NASA Outstanding Leadership Medal in 1998, the NASA Exceptional Service Medal in 1995 and 2002, and the NASA Space Flight Medal in 1992, 1994, and 1997, the NASA Fellowship for Full-Time Study in 1983, the ASME National Old Guard Prize in 1978, the ASME Ralph Coates Roe Medal in 2001. She has been inducted to the Alabama Aviation Hall of Fame, the Alabama Engineering Hall of Fame, and the Presidential Rank Award of Meritorious Executive.

Engineering career

After graduating from Auburn Universitymarker in 1977, Davis joined Texaco in Bellaire, Texasmarker, working as a petroleum engineer in tertiary oil recovery. She left there in 1979 to work for NASA’s Marshall Space Flight Center as an aerospace engineer. In 1986, she was named as team leader in the Structural Analysis Division, and her team was responsible for the structural analysis and verification of the Hubble Space Telescope (HST), the HST maintenance mission, and the Advanced X-Ray Astrophysics Facility. In 1987, she was also assigned to be the lead engineer for the redesign of the solid rocket booster external tank attach ring. Davis did her graduate research at the University of Alabama in Huntsville, studying the long-term strength of pressure vessels due to the viscoelastic characteristics of filament-wound composites. She holds one patent, has authored several technical papers, and is a Registered Professional Engineer.

NASA career

Davis became an astronaut in June 1987. Her initial technical assignment was in the Astronaut Office Mission Development Branch, where she provided technical support for Space shuttle payloads. She then served as a CAPCOM in Mission Control communicating with Shuttle crews for seven missions. After her first space flight, Davis served as the Astronaut Office representative for the Remote Manipulator System (RMS), with responsibility for RMS operations, training, and payloads. After Nancy's second space flight, she served as the Chairperson of the NASA Education Working Group and as Chief for the Payloads Branch, which provided Astronaut Office support for all Shuttle and International Space Station payloads. A veteran of three space flights, Davis has logged over 673 hours in space. She flew as a mission specialist on STS-47 in 1992 and STS-60 in 1994, and was the payload commander on STS-85 in 1997.

After her flight on STS-85, Dr. Davis was assigned to NASA Headquarters as the Director of the Human Exploration and Development of Space (HEDS), Independent Assurance Office for the Office of Safety and Mission Assurance. In that position, Dr. Davis managed and directed independent assessments for the programs and projects assigned to the HEDS enterprise. In July 1999, she transferred to the Marshall Space Flight Center, and is currently Director of the Flight Projects Directorate. Her Directorate is responsible for the International Space Station (ISS) Payload Operations Center, ISS hardware and the Chandra X-Ray Observatory Program. After the Columbia accident, she was named head of Safety and Mission Assurance at Marshall, where she assured the safe return to flight of the Space Shuttle. Dr. Davis retired from NASA in 2005, and currently works for Jacobs Engineering Group as a Vice President and Deputy General Manager.

Space flight experience

STS-47, Spacelab-J, was the 50th Space Shuttle mission. Launched on September 12, 1992, this cooperative venture between the United Statesmarker and Japanmarker conducted 43 experiments in life sciences and materials processing. During the eight-day mission, she was responsible for operating Spacelab and its subsystems and performing a variety of experiments. Davis's husband Mark C. Lee was payload commander on STS-47. After completing 126 orbits of the Earth, STS-47 Endeavour landed at Kennedy Space Centermarker on September 20, 1992.

STS-60 was the second flight of Spacehab (Space Habitation Module) and the first flight of the Wake Shield Facility (WSF). Launched on February 3, 1994, this flight was the first Space Shuttle flight on which a Russianmarker cosmonaut was a crew member. During the eight-day mission, her prime responsibility was to maneuver the WSF on the RMS, to conduct thin film crystal growth and she was also responsible for performing scientific experiments in the Spacehab. The STS-60 Discovery landed at Kennedy Space Center on February 11, 1994, after completing 130 orbits of the Earth.

Davis was the payload commander for STS-85, which was launched on Discovery on August 7, 1997. During this 12-day mission, Dr. Davis deployed and retrieved the CRISTA-SPAS payload, and operated the Japanese Manipulator Flight Demonstration (MFD) robotic arm. The mission also included several other scientific payloads for the conduct of research on astronomy, Earth sciences, life sciences, and materials science. The mission was accomplished in 189 Earth orbits, traveling 4.7 million miles. The STS-85 Discovery landed at Kennedy Space Center on August 19, 1997.


  1. Spacefacts biography of Jan Davis

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