What is Black Hole

A black hole, according to the general theory of relativity, is a region of space from which nothing, including light, can escape. It is the result of the deformation of space-time caused by a very compact mass. Around a black hole, there is an undetectable surface that marks the point of no return, called an event horizon. It is called “black” because it absorbs all the light that hits it, reflecting nothing, just like a perfect black body in thermodynamics.

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