Research in electric propulsion, plasma thrusters and fundamental problems in plasma physics. Princeton University.

Princeton Plasma Physics Laboratory. This site documents the undergoing research in electric propulsions.

Illustrated tutorial shows how Goodwin's electromagnetic-propulsion system works and how it could send spacecraft deep into space.

Use of space tethers for propellantless electrodynamic tether propulsion, pumped tether length propulsion, and transferring energy and momentum from one spacecraft to another.

Researching electric space propulsion with the goal of increased efficiency and better understanding of spacecraft integration issues.