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Hawking radiation

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This image shows the first ever picture of a black hole, captured by a network of telescopes around the world. The dark center represents the black hole's shadow, surrounded by bright material swirling around it.

What Is Hawking Radiation?

Hawking radiation is a special kind of energy that comes from just outside a black hole. This idea was created by the famous scientist Stephen Hawking in 1974. Before this, scientists thought that once energy or light got too close to a black hole, it could never escape.

Hawking radiation happens because of tiny, invisible forces called quantum effects. This radiation is very faint and too weak for our best telescopes to see right now.

If Hawking radiation is real, it would slowly take away mass and energy from black holes. Over a very long time, this could make black holes shrink and eventually disappear. Very small black holes would disappear faster than big ones.

Black Holes and Their Mystery

Modern black holes were first predicted by Einstein’s theory of general relativity. We now have strong evidence for these amazing objects because of their very strong pull of gravity.

A black hole can form when enough matter or energy is squeezed into a tiny space. This makes the speed needed to escape faster than light. Since nothing can go that fast, nothing inside a certain distance from the black hole can get out. This distance marks the event horizon, the edge around the black hole where even light cannot escape.

Images

A stunning view of the Crab Nebula, a glowing remnant of a star explosion, as captured by the Hubble Space Telescope.
A scientific illustration showing the concept of black hole entropy, which relates to the area of a black hole's surface.
An infographic showing how tiny black holes may slowly disappear due to a process called Hawking radiation, as theorized by Stephen Hawking.

Related articles

This article is a child-friendly adaptation of the Wikipedia article on Hawking radiation, available under CC BY-SA 4.0.

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