Loading…
Loading contentLoading…
Loading contentA gridded electrostatic thruster that ionises a propellant (usually xenon) and accelerates it with electric-field grids to very high exhaust velocity. It delivers tiny thrust but sips fuel, enabling missions like Deep Space 1 and Dawn.
Facts on this topic will be cited from these primary and reference sources.
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.
Orbital data, ephemerides, and small-body parameters for planets, asteroids, and comets.