Rex J. Walheim

Rex J. Walheim

Rex Joseph Walheim (born October 10, 1962) is a United States Air Force officer and a NASA astronaut. He has flown three space shuttle missions, STS-110, STS-122, and STS-135. Rex has logged over 566 hours in space, including 36 hours and 23 minutes of spacewalk (EVA) time. He was assigned as mission specialist and flight engineer on STS-135, the final space shuttle mission.