News for hackers. Stuff that matters.
Re:NASA confirms that the ‘impossible’ EmDrive thruster real... by colinramsay on Wednesday November 04, 2015 @05:44AM (#10505680)
The impulse engine in Star Trek was just a fancy fusion-powered plasma rocket.

http://memory-alpha.wikia.com/wiki/Impulse_drive

Re:NASA confirms that the ‘impossible’ EmDrive thruster real... by kuschku on Wednesday November 04, 2015 @12:39PM (#10508176)
Actually, there are several in-universe articles saying otherwise:

The interaction between the shields and a conventional propulsive system would be horrible (you’d get fried in your own plasma).

Therefore the Interacting Magnetic Pulse system (sorry, I’m translating back here, so I dunno if that’s the correct term in the correct in-universe article in english) actually uses some weird interaction of microwaves to create "gravitational waves on which the ship then rides", as one engineer said poetically.