HEP Theory2026-08-062 minarXiv:2608.06016expressHairy Black Holes and StringsA black hole is not just a dark sphere. In string theory, it can grow 'hair'—extra scalar fields such as the axion and the dilaton. These fields gently alter the geometry of space around the hole.Eliseo Pavoneno-hair theoremJacob BekensteinJohn Archibald WheelerAdam Riessblack holestring theory👍👎☆SimplePopularAdvanced