Tracy Caldwell Dyson
- Status: Active
- In Space: No
- Date of Birth: 08/14/1969
- First Flight: 08/08/2007
- Last Flight: 04/02/2010
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Tracy Caldwell Dyson, a American astronaut affiliated with the government agency National Aeronautics and Space Administration, embarked on 2 space flights and engaging in 3 spacewalks during his/her career as an astronaut.
Tracy Caldwell Dyson is an American chemist and NASA astronaut. Caldwell Dyson was a Mission Specialist on Space Shuttle Endeavour flight STS-118 in August 2007. She was part of the Expedition 24 crew on the International Space Station between April 4, 2010 and September 25, 2010. She has completed three spacewalks, logging more than 22 hrs of EVA including work to replace a malfunctioning coolant pump.
