Tracy Caldwell Dyson

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. She is currently in space since March 23, 2024 for a third time, for a six-month mission onboard the ISS. Provided by Wikipedia