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Loading contentAn electrothermal thruster that passes propellant through an electric arc, heating it far beyond what a chemical reaction alone allows before it expands through a nozzle. Arcjets have flown operationally for satellite station-keeping, offering higher exhaust velocity than cold-gas or simple resistojet systems.
Facts on this topic will be cited from these primary and reference sources.
Mission data, planetary science, space telescopes, and public-domain imagery.
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