I can’t help but be excited about the EmDrive, the experimental space propulsion system that seems to defy the fundamental laws of physics. A peer-reviewed paper has just been released, and, despite many physicists expecting this paper to finally kill the EmDrive puzzle, the opposite has happened: the paper found that the drive does, in fact produce thrust. It’s just that nobody seems to know how. Or why. I asked our tame physicist to help us figure this out.