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Manage episode 280781112 series 2448237
- Memorandum on the National Strategy for Space Nuclear Power and Propulsion (Space Policy Directive-6)
- Chang'e 5 Pressekonferenz
- Surprise! First peek inside Mars reveals a crust with cake-like layers
- ESA plans demonstration of a reusable rocket stage
- Österreicher Josef Aschbacher zum neuen ESA-Generaldirektor gewählt