Photons at ultra-high energies can behave like runners accelerating so much that they stop noticing obstacles. Data from the brightest gamma-ray burst GRB 221009A hints at a possible shift: the speed of light might not be entirely constant. If so, conventional physics cracks, and we glimpse the realm of quantum gravity.
🎯 Gamma-ray burst GRB 221009A was nicknamed BOAT (Brightest Of All Time). Its light was so powerful that it disturbed Earth's ionosphere, even though the source was nearly two billion light-years away.
🎬 In Isaac Asimov's novel 'The Gods Themselves', physicists encounter an anomaly that violates the law of energy conservation—much like the violation of Lorentz symmetry challenges the constancy of the speed of light.