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    • CommentAuthorLani
    • CommentTimeApr 12th 2010 edited
     (8044.1)
    Like part of a cosmic Russian doll, our universe may be nested inside a black hole that is itself part of a larger universe. In turn, all the black holes found so far in our universe—from the microscopic to the supermassive—may be doorways into alternate realities.

    According to a mind-bending new theory, a black hole is actually a tunnel between universes—a type of wormhole. The matter the black hole attracts doesn't collapse into a single point, as has been predicted, but rather gushes out a "white hole" at the other end of the black one, the theory goes.


    The new model isn't the first to propose that other universes exist inside black holes. Damien Easson, a theoretical physicist at Arizona State University, has made the speculation in previous studies.

    "What is new here is an actual wormhole solution in general relativity that acts as the passage from the exterior black hole to the new interior universe," said Easson, who was not involved in the new study.

    "In our paper, we just speculated that such a solution could exist, but Poplawski has found an actual solution," said Easson, referring to Poplawski's equations.

    Source

    BAD. ASS.
  1.  (8044.2)
    Hannah and Barbera were ahead of their time.
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      CommentAuthorrickiep00h
    • CommentTimeApr 12th 2010
     (8044.3)
    When a dude says "I've just made up this thing, and this thing that I made up proves my point!" I generally try to avoid it. I'm not saying that this theory might not be fucking amazing (because it is) but when you have to make up yet another theoretical substance in a field full of theoretical substances, I get a little tired.

    This wacky-ass substance does has some cool points though. Having reverse properties of gravity seems pretty neat. Plus the theory as a whole has some interesting implications. Can you go from one universe to another through a wormhole? Can you go in both directions? If, assuming you could somehow survive through spaghettification, you ended up on the other side of a wormhole, would you instantaneously de-interlace because you're at an opposite gravitational charge than the universe you're in? Would it be possible that rather than being "nested" the universes were coincident, with a single point of space being shared between the two universes (or all universes)?

    All pretty awesome ideas. I'm not to keen on the jiggering the math to make it work. Unless, of course, they figure out a way to prove this wacky exotic matter other than "these calculations need it to work." We already have something kinda like that: dark matter.
    • CommentAuthorLani
    • CommentTimeApr 12th 2010
     (8044.4)
    This has some criticism of the press this theory has received, but he still concedes that
    First off, this solution is stable, which means -- in principle -- that it can exist. Second off, it is possible that this can be generalized to make the space inside of it do other things besides remain completely static (like expand or contract). And third off, it brings up this amazingly interesting possibility that not only might our Universe be the inside of a black hole, but that each black hole that's come to exist in our Universe may house its own miniature Universe inside of it!

    He also points out that the research into this theory may lead to some fascinating discoveries.

    At any rate, "jiggered math" is a bit unnecessarily dismissive I think, as it's not just one guy's wacky ideas - other researchers agree that his logic and reasoning holds. Also, just because we can't test it yet doesn't mean it's not testable, even if it ends up being in fairly roundabout ways. There's been some pretty cool research to support dark matter and dark energy too, though they're both difficult to test as you say.

    Regardless, reading about this stuff inevitably elicits a SQUEEEEEEE!! reaction in me. Astrophysics = awesome.
    • CommentAuthorLani
    • CommentTimeApr 12th 2010 edited
     (8044.5)
    (sorry, internet trickiness = broken duplicate posts)
  2.  (8044.6)
    Soon every door in your house will lead to a room 4 inches larger on the inside than it is on the outside.
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      CommentAuthorrickiep00h
    • CommentTimeApr 12th 2010
     (8044.7)
    Like I said, personal opinion on the weird math/inventing variables thing. I'm not an astrophysicist, so I'm going to trust that he probably knows a lot more about it than I do.
  3.  (8044.8)
    @ agentarsenic - clever reference.
    • CommentAuthorFan
    • CommentTimeApr 13th 2010
     (8044.9)
    > I'm not an astrophysicist

    Is this "theory" testable? If the other side of a black hole's event horizon is unknowable, then why try to know it? Maybe this a Mathematical theory, and not a Physical theory.
  4.  (8044.10)
    @Fan
    Probably not directly, but hopefully it might indirectly predict some observable physical phenomena, or a particular type/property of particle that might one day be observed in an accelerator.
  5.  (8044.11)
    Would our parent black hole's universe have the same physics as ours does? Can we even have black holes in a universe with different physical laws? If it does have the same laws, would that suggest it's parent black hole's universe is the same? Wouldn't this imply infinite regress? What if black holes aren't creating new universes, but are recycling spacetime back into our own reality?
    • CommentAuthorVerissimus
    • CommentTimeApr 13th 2010
     (8044.12)
    What does the term "another universe" mean when matter can go from here to there via a black hole? Is my bedroom also another universe because I have to use a door to get there? Why are we asking all these questions?
  6.  (8044.13)
    @Verus
    Oh! Wow, actually you must be right. I'll go tell the scientists to stop asking questions, and I'll try to moderate my curiosity from now on. I much prefer not thinking about things that are hard to answer, and I'm sure it'll take a weight off their minds to know that it's all pointless.
    • CommentAuthorVerissimus
    • CommentTimeApr 13th 2010
     (8044.14)
    @Paul
    I'm right?

    That can't be right.
  7.  (8044.15)
    Hehe, maybe I was being little sarcastic, I couldn't help myself. My point is that questioning human curiosity is not only ironic, it's more than a bit futile.
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      CommentAuthorLokiZero
    • CommentTimeApr 13th 2010
     (8044.16)
    HOLY SHIT I WAS JUST THINKING ABOUT THIS THE OTHER DAY!

    ahem.

    I was watching this thing on the Science channel about parallel universes and M Theory, then I got to thinking about black holes, and how they must be punching through this universe into the next one.
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      CommentAuthorcity creed
    • CommentTimeApr 13th 2010
     (8044.17)
    hehe - questioning out of genuine ignorance is never futile, surely? :P
    I thought Verus made a legit point originally though.
    How can it be a different universe if it's contiguous with this one? - even if it is via a black hole
  8.  (8044.18)
    Probably just a matter of semantic arrangement.
    • CommentAuthorFan
    • CommentTimeApr 14th 2010
     (8044.19)
    Reading the article, the interesting thing isn't the other universes inside black holes of our universe; instead it's whether the possibility that our universe is the inside of a black hole of some other universe can explain phenomena which we see in this universe.
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      CommentAuthorGekko
    • CommentTimeApr 14th 2010
     (8044.20)
    That would mean our universe has bounds, wouldn't it? Isn't a theory about limits of our universe what we are secretely looking for, something to feel less miscroscopic, to soothe our fears? You see what I mean?