In theory, the device creates an invisible sphere around an object, known as a warp bubble, that contracts the space-time in front of it while expanding the space-time behind it. This essentially ...

By warping space-time, this drive could enable travel at ten times the speed of light without violating general relativity.

Einstein spent the decade between the two publications determining that particularly massive objects warp the fabric of space-time, a distortion that manifests as gravity, according to NASA.