Black Holes May Have Crossed From a Universe Before Ours
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Did black holes cross into our universe before the Big Bang? A new cosmological theory suggests that some black holes may have originated during the collapse of a universe that existed before ours. Instead of being completely destroyed, these ancient structures may have survived a cosmic bounce—the hypothetical transition from a contracting universe into the expanding universe we observe today. These objects, known as cosmological bounce relics, would be fundamentally different from ordinary or primordial black holes. Some could have remained embedded in spacetime as the universe changed from contraction to expansion, while other preserved structures may have collapsed into black holes later. If pre-Big-Bang black holes exist, they could potentially help scientists investigate several major cosmic mysteries, including the nature of dark matter, unexplained gravitational-wave backgrounds, and the surprisingly rapid appearance of supermassive black holes in the early universe. But no bla
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