Cosmology2026-05-152 minarXiv:2605.15772expressTiny Black Holes Warm the Universe Longer Than ThoughtA tiny black hole the size of an atomic nucleus but with the mass of a mountain emerged in the first moments after the Big Bang, when random clumps of energy collapsed into such objects.Chenhuan WangHawking radiationFirst law of black hole mechanicsJacob BekensteinJohn Archibald WheelerStephen Hawkingprimordial black holeblack hole mergergravitational wavesblack holeAccretion disk👍👎☆SimplePopularAdvanced