Sigmund Jähn and Jean-Loup Chrétien, both flew space missions for which previous government?
Sigmund Jähn Sigmund Werner Paul Jähn (born 13 February 1937) is a German cosmonaut and pilot, who in 1978 became the first East German (and German native) to fly in space as part of the Soviet Union's Interkosmos programme.
Egbert Jahn Egbert Kurt Jahn (born 26 May 1941 in Berlin) is a German political scientist, contemporary historian and peace researcher and is emeritus professor at the University of Mannheim.