Black Hole Shadows Put Quantum Gravity to the Test ⚡ экспресс
The Event Horizon Telescope captured the shadows of black holes. By comparing the images with predictions from loop quantum gravity (where spacetime consists of microscopic 'loops'), scientists found: quantum effects make the shadow larger. Even if the hole lacks an event horizon, the dark ring can persist. Observations don't rule out this possibility. So, black holes might be even more mysterious—and maybe we're seeing quantum imprints in their shadows?
The shadow of a black hole is not just a silhouette. It's the edge of the abyss, where space and time are twisted so tightly that even light is forced to swirl like a wood chip in a whirlpool. This 'cosmic whirlpool' arises from the monstrous mass warping spacetime.
Physicists tested what would happen if quantum effects—tiny corrections from loop quantum gravity theory, where space itself is made of microscopic loops—are added to this whirlpool. Calculations showed that quantum corrections barely perceptibly widen the shadow. But more importantly, even if you remove the 'drain hole,' i.e., the event horizon, the funnel remains closed, and the shadow stays a ring. The real surprise: inside such a black hole, there's no singularity point, just an entangled tangle of loops.
🎯 Light in a black hole's shadow can loop around, creating an infinite series of reflections, like in a hall of mirrors.
🎬 In 'Interstellar,' Gargantua's shadow was modeled using classical equations; quantum corrections would make it slightly more oval.