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Among such ion engines, a field emission electric propulsion (FEEP) type engine that obtains thrust by accelerating liquid metal ions was built by Breaking Taps, a YouTube channel that makes ...

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 ...

But space agencies like NASA, ESA, and France’s CNES have been experimenting with electric thrusters for decades, in a bid for a cleaner, more efficient way to propel satellites. A few startups ...

Electric space propulsion systems, which accelerate ions or plasmas to very high exhaust velocities, are becoming more common. The DLR Institute of Aerodynamics and Flow Technology in Göttingen is ...