General Relativity2026-02-141 minarXiv:2602.13609expressA black hole can turn into a wormholeAn ordinary black hole is a bottomless pit from which not even light can escape. However, physicists have found a way to turn this pit into a through-tunnel — a wormhole.Yasutaka Koga·Ryota Maeda·Daiki Saito·Daisuke YoshidaPenrose processRoger PenroseAlan GuthAlbert EinsteinWormholeblack holedark energygravitational potential👍👎☆SimplePopularAdvanced