Is it possible that Elon Musk and NASA have finally defied the law of physics with their latest development? Perhaps they have because NASA is on the verge of creating a near-light-speed engine that defies physics laws, a concept for an engine that can accelerate to 99 percent the speed of light without using any fuel. That might sound like something out of a science fiction film, but it is not. One of NASA’s engineers is working on something similar, and it has the potential to defy physics.