The AEPS is a solar electric propulsion system that uses xenon as its propellant, much like existing ion engines. Where it differs is in the power output, which should allow it to work as the ...

Unlike most interplanetary probes, Dawn is not propelled by a chemical rocket engine, but by a solar-electric ion propulsion system, particularly suitable for long-distance flights. This innovative ...

Hollow cathodes are used as part of both Hall effect and gridded ion thrusters, which are some of the most common forms of electric propulsion in use today. The operation of hollow cathodes, despite ...