NASA Astronaut Tracy C. Dyson
Tracy C. Dyson was selected as a NASA astronaut in 1998. Most recently, Dyson launched to the International Space Station on March 23, 2024, as a flight engineer on the Soyuz MS-25 spacecraft. Dyson spent six months aboard the station as an Expedition 71 flight engineer, conducting science experiments and maintaining the space station. It was her second long-duration spaceflight and third mission overall.
Quick Facts
In 1999, she was first assigned to the Astronaut Office International Space Station Operations branch as a Russian crusader, participating in the testing and integration of Russian hardware and software products developed for the International Space Station (ISS).
In 2007, Caldwell Dyson flew aboard the Space Shuttle Endeavor on STS-118, where she served as a Mission Specialist. In 2010, she served as Flight Engineer for Expedition 23/24. She has logged more than 373 days in space, including over 23 hours in four spacewalks.
Dr. Caldwell Dyson has designed, constructed and implemented electronics and hardware associated with the study of atmospheric gas phase chemistry, and has developed and presented numerous papers on methods of chemical ionization for the spectral interpretation of trace compounds.
Biography
Tracy C. Dyson
Learn more about astronaut Tracy C. Dyson, including her flight experience, hobbies, education, background and more.
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