The German Aerospace Center (German: Deutsches Zentrum für Luft- und Raumfahrt e.V., abbreviated DLR, literally German Center for Air- and Space-flight)...
7 KB (4,164 words) - 14:08, 13 September 2024
Air Force space propulsion project ASTR LFBB with technical details "Sonnensegel und Satellitenkatapult" (in German). astronews.com. 4 April 2007. Retrieved...
21 KB (2,540 words) - 14:33, 6 January 2024