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.
Erwin Schwab Erwin Schwab (b. 1964) is a German amateur astronomer, who works at the GSI Helmholtzzentrum für Schwerionenforschung and has discovered and co-discovered more than 80 asteroids.