Boris Yegorov Status: Deceased 11/26/1937 – 9/12/1994 Nationality: Russian Type: Government Agency: Russian Federal Space Agency (ROSCOSMOS) Boris Borisovich Yegorov was a Soviet physician-cosmonaut who became the first physician to make a space flight. Yegorov was selected as a member of the multi-disciplinary team that flew on Voskhod 1.