These systems are characterized by the propellant used and emission mode of the ion beam. The most common of these, field emission electric propulsion (FEEP), utilize liquid metals as its ion source ...
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Engineers develop a fully 3D-printed electrospray engine that can power tiny satellitesAn electrospray engine applies an electric field to a conductive liquid ... in-orbit maneuvers. The thrust generated by an electrospray emitter is tiny, so electrospray engines typically use ...
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