Arcadia, California native Tracy Caldwell Dyson, Ph.D., began working as a NASA astronaut in 1998. She received a Bachelor of Science degree in Chemistry from California State University, Fullerton in ...
Tracy Caldwell Dyson is an American chemist and NASA astronaut. She has spent nearly 189 days in space during her career. Most recently, Tracy went viral after singing the National Anthem at the NCAA ...
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