Who is an astrophysicist for the European Space Agency, Dirk Frimout or Georgi Ivanov?
Georgi Ivanov Major general Georgi Ivanov Kakalov (Bulgarian: Георги Иванов Какалов ; born July 2, 1940) is a retired Bulgarian military officer and the first Bulgarian cosmonaut. He was a member of the National Assembly of Bulgaria in 1990.
Georgy Langemak Georgy Erikhovich Langemak (Russian: Георгий Эрихович Лангемак ) (26 June (N.S. 8 July) 1898–11 January 1938) was a Soviet rocket designer of German/Swiss background.