Robert Lee “Bobby” Satcher, Jr. (born September 22, 1965) is an American physician, chemical engineer, and NASAastronaut. He became the first orthopedic surgeon in space during STS-129. He participated in 2 spacewalks during STS-129, accumulating 12hrs 19min of EVA time. Satcher holds two doctorates (Ph.D., M.D.) and has received numerous awards and honors as a surgeon and engineer. He is married and has two children. Bobby Satcher enjoys running, scuba diving, and reading.