2 ms·
Ion engines still need propellant, you might be thinking of the so far unproven EM drive.
by pilsetnieks 8y ago
Ion engines still need propellant, you might be thinking of the so far unproven EM drive.
- elihu 8y agoIon engines need propellant, but they need a lot less of it to achieve a similar result as a traditional rocket engine.