White holes

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  • White Holes

    “White Holes” Could Exist—But That Doesn’t Mean They Do

      Nautilus Members enjoy an ad-free experience. Log in or Join now . A black hole is a one-way door to oblivion. According to general relativity, once anything crosses its boundary—the event horizon—it cannot return to the outside. For that particle, the black hole is the entire future.We’ll never actually get a chance to see […]