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A comment on Propelling deep space flight with new fuel source, Momentus prepares for liftoff. Parent comment
To answer your question, I would guess that a microwave can get the reaction mass hotter than just a resistive heating element, and thus get higher exhaust velocity.
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To answer your question, I would guess that a microwave can get the reaction mass hotter than just a resistive heating element, and thus get higher exhaust velocity.