After the fall of the Berlin Wall in 1989 and Germany's reunification a year later, Jaehn became an adviser to the German Aerospace Center and the European Space Agency. ..…

Police from both sides stands by November 1989 Speaking at Brandenburg Gate in the western part of Berlin on June 12, 1987, ment. Berlin Wall was erected August 1961 by German Democratic Republic, to prevent the escape of East Berliners to West Berlin. ..…