Radiative Signatures from Warp Drives Traveling Through the Earth's Atmosphere
2026
If exotic warp-drive propulsion were ever operating near Earth, it should not be able to hide: we simulated how a small, aircraft-sized spacetime bubble would sweep up and energize the air around it. Above roughly a tenth of the speed of light the interaction releases more than a trillion watts, producing an unmistakable glow, while slow-moving bubbles stay dark.