Donald Roy Pettit (born 20 April 1955) is an American astronaut, a veteran of a six month stay aboard the International Space Station. Pettit, raised in Silverton, Oregon, earned a bachelor's degree in chemical engineering from Oregon State University in 1978 and a doctoral degree from the University of Arizona in 1983. Pettit worked as a scientist as the Los Alamos National Laboratory until 1996, when he was selected as an astronaut candidate. Wikipedia
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