Thomas Reiter is a German astronaut and physicist, born on May 23, 1958. He is known for his work with the European Space Agency (ESA) and has participated in multiple space missions, including the Mir space station and the International Space Station (ISS). Reiter has spent a total of over 350 days in space, contributing to various scientific experiments and research. Before becoming an astronaut, Reiter served as a pilot and test engineer in the German Air Force. He was selected as an ESA astronaut in 1992 and has played a significant role in promoting European space exploration. His achievements have made him a prominent figure in the field of space science.