Mark Vande Hei

Mark Vande Hei is an American astronaut and engineer. He was born on November 22, 1976, in Omaha, Nebraska. Vande Hei graduated from the United States Naval Academy and later earned a master's degree in astronautical engineering from the University of Michigan. He was selected as an astronaut by NASA in 2006 and has flown on two space shuttle missions. Vande Hei is currently a NASA astronaut and has spent over 355 days in space, setting a record for the longest single spaceflight by an American.