The very first German astronaut to conduct a spacewalk. During his six missions, he spent a lot more than 350 times in space. He afterwards served because the Western european Space Agency’s Movie director of Individual Spaceflight and Functions. In 1982 he received a qualification in aerospace anatomist from Bundeswehr School, Munich. He seen the Mir Space Place and offered on ISS Expedition 13/14. His relationship created two sons. He and Gerhard Thiele had been fellow German astronauts.