While the verdict of the "impossible" engine is still to be finalized, China is claiming that they had created their own "successful" EM Drive and that they are currently testing it in in low-Earth orbit.
An EM Drive is already too good to be true, but it appears China's recent developments with its "reactionless" electromagnetic drive (or EM Drive) may blow things out of proportion.
NASA's Electromagnetic Drive (EM Drive), a physics-defying warp engine has recently passed peer review.
An unpublished paper from NASA reveals that the controversial EM Drive – a space engine with fuel-free propulsion system – could actually work. But critics remain skeptic about the idea saying that the engine violates the laws of physics.
Space fans are well aware that there are plans for NASA to build a fully electromagnetic drive, much to the skepticism of critics. However, a leaked paper suggests they actually did it -- and it works.