German scientists have confirmed that an Electromagnetic Propulsion Engine, claimed by some to be 'impossible', actually works.
The EM Drive breaks the conservation of momentum law of physics, which is why it was originally widely ridiculed by the scientific community. However after repeated testing, it appears that the engine is actually producing thrust. Claims earlier in the year that it was creating a warp field have now been refuted.
It is propelled forward by microwaves bouncing around inside a closed chamber. It will supposedly be able to get us to Mars in just 70 days, without using expensive rocket fuel.
Martin Tajmar, the German scientist who has been independently testing the EM Drive, has a history of debunking experimental propulsion systems. So far, the drive appears to work, even in a vacuum. More testing is required to examine exactly how it works, and whether it is viable for use.