Black-hole thermodynamics
Robert B. Mann
Nature Reviews Physics, Published online: 11 May 2026; doi:10.1038/s42254-026-00942-9 The study of black-hole thermodynamics — now 50 years old — has led to deep insights into fundamental physics, but it has also created fresh paradoxes and puzzles. This Review assesses what has been learned, where progress is being made, and what remains unknown.