 He replaced Expedition 16 Flight Engineer Garrett Reisman, who returned to Earth with the STS-124 crew.The STS-124 mission was completed in 218 orbits, traveling 5,735,643 miles in 13 days, 18 hours, 13 minutes and 7 seconds.The Soyuz TMA-21 "Gagarin" descent module is in permanent exhibition at the German Titov Museum in Polkovnikovo, Altai Kray, Siberia.