In general relativity, a white hole is a hypothetical region of spacetime and singularity that cannot be entered from the outside, although energy-matter, light and information can escape from it. In this sense, it is the reverse of a black hole, from which energy-matter, light and information cannot escape
White holes are created when astrophysicists mathematically explore the environment around black holes, but pretend there's no mass within the event horizon.
A white hole is a bizarre cosmic object which is intensely bright, and from which matter gushes rather than disappears.
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In general relativity, a white hole is a hypothetical region of spacetime and singularity that cannot be entered from the outside, although energy-matter, light and information can escape from it. In this sense, it is the reverse of a black hole, from which energy-matter, light and information cannot escape
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