A to Z Black Hole : (H) Hawking Radiation

The Slow Death: Hawking Radiation
Nothing escapes a black hole—except, perhaps, heat. Stephen Hawking revolutionized physics by proving that black holes aren't completely black. Due to quantum effects at the event horizon, NASA-backed research suggests that black holes actually emit a faint glow of radiation, causing them to lose mass over immense periods of time.
​Top-Tier Insights:
​Virtual Particles: In empty space, pairs of particles and anti-particles constantly pop in and out of existence. Near a black hole, one can fall in while the other escapes. This escaping particle becomes Hawking Radiation.
​Mass Loss: Because the escaping particle takes a tiny bit of energy with it, the black hole loses mass. The smaller the black hole, the faster it evaporates.
​The Ultimate Timeline: While a stellar-mass black hole would take 10^{67} years to vanish, the final moments of evaporation would end in a massive explosion of gamma rays.

​Source: NASA / Cambridge University / Jet Propulsion Laboratory (JPL).

​Tags: #NASA #CosmicGleam #BlackHole #HawkingRadiation #Physics #SpaceFacts #AtoZSeries #StephenHawking

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