I've thought for a long time that the so-called "Biefeld-Brown Effect" (aka corona wind, electrohydrodynamic propulsion, ion propulsion, plasma actuator etc.) c

I've thought for a long time that the so-called "Biefeld-Brown Effect" (aka corona wind, electrohydrodynamic propulsion, ion propulsion, plasma actuator etc.) could be used to keep satellites in orbit indefinitely and cheaply using the atmosphere as propellant. It also has the advantage that the lower you go, the denser the atmosphere and the better the thrust. https://en.wikipedia.org/wiki/Biefeld%E2%80%93Brown_effect https://en.wikipedia.org/wiki/Biefeld%E2%80%93Brown_effect https://en.wikipedia.org/wiki/Plasma_actuator https://en.wikipedia.org/wiki/Plasma_actuator