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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.
13 sie 2023 · Do they exist? And, if so, where are they? To understand the nature of white holes, first we have to examine the much more familiar black holes.
11 lip 2023 · Why white holes may not exist. While general relativity describes white holes in theory, no one knows how one might actually form. A black hole cordons off its bit of space when a star...
7 maj 2024 · In astrophysics, a white hole represents a theoretical phenomenon where matter and light would emerge from, rather than be pulled into, a certain area in space. It's the exact opposite of a black hole.
19 sie 2014 · But new research suggests that, if a speculative theory called loop quantum gravity is right, white holes could be real—and we might have already observed them.
White holes are the opposite of black holes, in that they spit out light and matter, rather than trapping it. So far, white holes are purely hypothetical objects, but astronomers are contemplating how they could form in reality. No light can escape a black hole, but it can be bent around it.
A white hole is a bizarre cosmic object which is intensely bright, and from which matter gushes rather than disappears. In other words, it’s the exact opposite of a black hole. But unlike black holes, there’s no consensus about whether white holes exist, or how they’d be formed.
