Since the Space Shuttle was retired, we have been lacking a multi-mission spacecraft. Could Europe's Space Rider be the answer? Spacecraft are expensive things. They can take decades to design, and test, and build. And then, apart from the modules that carry their crew back to terra firma, they a...
http://flip.it/wFRNGt
http://flip.it/wFRNGt
No hay comentarios:
Publicar un comentario