Question

Since blackholes attract everything, then how does it loses its energy by Hawking radiation??​

Answer 1

Answer:

Hawking radiation reduces the mass and rotational energy of black holes and is therefore also known as black hole evaporation. Because of this, black holes that do not gain mass through other means are expected to shrink and ultimately vanish.

Answer 2

The escaping photon adds an equal amount of positive energy to the wider universe outside the black hole. In this way, no matter or energy ever actually leaves the black hole itself. ... Hawking radiation reduces the mass and rotational energy of black holes and is therefore also known as black hole evaporation.

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