Black Holes Evaporate

≈ 10⁶⁷ years · Far Future

Temperature (K): 1e-20
When: ≈ 10⁶⁷ years
Redshift: —
Era: Far Future
Seconds After Big Bang: 3.155693e+74

What Happened

Stellar-mass black holes finish radiating themselves away. A solar-mass hole is far colder than today's microwave background, so it cannot even begin to shrink until the universe has cooled below its own temperature.

Researchers

Stephen Hawking Jacob Bekenstein Fred Adams Gregory Laughlin

Equations

Schwarzschild Radius Stefan–Boltzmann Law Boltzmann Entropy Planck's Law

Theories

Black Hole Thermodynamics General Relativity

Referenced by

equation

Boltzmann Entropy Planck's Law Schwarzschild Radius Stefan–Boltzmann Law

researcher

Fred Adams Gregory Laughlin Jacob Bekenstein Stephen Hawking

theory

Black Hole Thermodynamics General Relativity

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From the Cosmic Timeline database in Notion, last edited 2026-08-16. This page is the row, rendered by the build; nothing on it is written by hand.