Tracy Caldwell Dyson | |
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Born | Tracy Ellen Caldwell August 14, 1969 Arcadia, California, U.S |
Education | California State University, Fullerton (BS) University of California, Davis (MS, PhD) |
Spouse | George Dyson |
Space career | |
NASA astronaut | |
Time in space | 351 days, 13 hours, 35 minutes (currently in space) |
Selection | NASA Group 17 (1998) |
Total EVAs | 4 |
Total EVA time | 23 hours, 20 minutes |
Missions | STS-118 Soyuz TMA-18 (Expedition 23/24) Soyuz MS-25 (Expedition 70/71) |
Mission insignia | |
Scientific career | |
Fields | Physical chemistry |
Thesis | A Mechanistic and Kinetic Study of Heterocycle and Cyclization Chemistry on Pd(111) Using Laser-Induced Thermal Desorption with Fourier Transform Mass Spectrometry (1997) |
Tracy Caldwell Dyson (born Tracy Ellen Caldwell; August 14, 1969) is an American chemist and NASA astronaut. She was a mission specialist on Space Shuttle Endeavour flight STS-118 in August 2007 and part of the Expedition 23 and Expedition 24 crew on the International Space Station from April 2010 to September 2010. She has completed three spacewalks, logging more than 22 hours of extravehicular activity.[1][2] She is currently in space since March 23, 2024 for a third time, for a six-month mission onboard the ISS.
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