Robert Louis "Bob" Behnken is a United States Air Force officer, NASA astronaut and Chief of the Astronaut Office. Behnken holds a Ph.D in Mechanical Engineering and has reached the rank of Colonel in the U.S. Air Force. Bob Behnken has logged over 1,000 flight hours in 25 different aircraft. He flew on Space Shuttle mission STS-123 as a Mission Specialist. Bob Behnken has accumulated over 378 hours in space, including 19 hours of spacewalk time. Bob Behnken was assigned as Mission Specialist 1 for the STS-400 rescue mission. He also flew on the STS-130 space shuttle mission. He is married to fellow astronaut K. Megan McArthur. 

July 28th, 1970 in Creve Coeur (Age 54)