Jeff Thornburg helped turn a government research project into SpaceX’s most powerful rocket engine. Now, he’s trying to do the same thing at his startup Portal Space Systems, which is taking an idea ...
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Nuclear engines for space rockets soon? First in-space test planned in early 2026. Promises vs risks
Space rockets may soon use nuclear-powered engines based on nuclear thermal propulsion, or NTP technology. While no nuclear engine will fly this year, the field is approaching a major milestone, with ...
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