Hawking Radiation

Hawking radiation is quantum radiation theorized to be emitted by black holes, allowing them to slowly evaporate over cosmic timescales. Proposed by physicist Stephen Hawking in 1974, this phenomenon emerges from the interaction between Quantum Mechanics and General Relativity near the event horizon.

The mechanism works like this: virtual particle-antiparticle pairs constantly flicker into and out of existence throughout spacetime. Near a black hole's event horizon, one particle can fall inward while its partner escapes, carrying away real energy. From a distant observer's perspective, the black hole appears to radiate particles and lose Mass.

This discovery was revolutionary—it suggested black holes aren't truly "black," and challenged the notion that nothing escapes their grip. The radiation temperature increases as a black hole shrinks, making the effect stronger over time. For stellar-mass black holes, this process is extraordinarily slow; for microscopic primordial black holes, it could be dramatic.

Hawking radiation remains one of physics' most profound bridges between Quantum Mechanics and Gravity, hinting at deeper truths about the universe's structure.

Related

Stephen Hawking, Black Hole Thermodynamics, Event Horizon, Quantum Field Theory, Primordial Black Holes, Information Paradox