According to the team they were able to use the EmDrive to produce around 1.2 millinewtons per kilowatt of thrust in a vacuum.
One significant problem remains that our understanding of how it actually works is pretty limited, all we really know is that if you turn it on, it’ll push you in the right direction.
This is quite a big problem, so big in fact that many in the scientific community are still unconvinced that it could work.
To prove its worthiness once and for all, the EmDrive will actually be sent into space and tested, hopefully settling the debate once and for all.
For those of you who want to get stuck into the painfully complex science behind how it works, EmDrive creator Roger Shawyer has given this dry, but highly informative explanation of his theory: