No-one has visited the Moon since 1972. But with the advent of commercial human spaceflight, the urge to return is resurgent and generating a new space race. NASA has selected the private company SpaceX to be part of its commercial spaceflight operations, but the firm is also pursuing its own space exploration agenda. To enable flights to the Moon and beyond, both NASA and SpaceX are developing new heavy-lift rockets: SpaceX’s Starship and NASA’s Space Launch System. But how do they differ and which one is more powerful? Starship Rockets go through multiple stages to get into orbit. By discarding…
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