Dr. Tracy Caldwell Dyson is a chemist and NASA astronaut. She was a Mission Specialist on Space Shuttle Endeavor and was part of the Expedition 24 crew on the International Space Station in 2010. She has completed three spacewalks, logging more than 22 hrs of EVA including work to replace a malfunctioning coolant pump.
Her studies were conducted in California. She received a B.S. in Chemistry from California State, and a Ph. D. in Physical Chemistry from the University of California. Her academic career included performing environmental monitoring of laboratories; processing chemical and radioactive waste; work on surface reactivity and kinetics of metal surfaces; and investigations in atmospheric chemistry.
Her NASA career has included work on two missions and 3 EVAs during her 188+ days in space. She has flown in the Space Shuttle Endeavor and Russian Soyuz capsules. Dr. Dyson is also the host of a series on NASA TV called “Station Life”, which focuses on life aboard the International Space Station.
Several YouTube videos you might enjoy are here: