Ulrich WalterStatus: Retired 2/9/1954 – Nationality: German Type: Government First Flight: 4/26/1993 Last Flight: 4/26/1993Prof. Dr. Ulrich Hans Walter (born February 9, 1954) is a German physicist/engineer and a former DFVLR astronaut. In 1993, he flew on board the Space Shuttle Columbia on mission STS-55 (Spacelab D-2) as a Payload Specialist. He spent 9 days, 23 hours, and 40 minutes in space.LaunchesSpace Shuttle Columbia / OV-102 | STS-55German Aerospace CenterType: Government Abbreviation: DLR Administration: Pascale Ehrenfreund Founded: 1969Spacecraft: Mars Express | Rosetta | Dawn Country: DEUThe German Aerospace Center is Germany’s Center for aerospace, energy, and transportation research. Their main work is as a contributor to the ESA. They have done work both in tandem with the US on Space Shuttle and the ISS, and also with other European Nations on missions like Space Lab and Mars Express.