[url=http://phys.org/news/2011-05-theory-black-holes-predate-big.html]Article:[/url]
[quote]Cosmologists Alan Coley from Canada's Dalhousie University and Bernard Carr from Queen Mary University in London, have published a paper on arXiv, where they suggest that some so-called primordial black holes might have been created in the Big Crunch that came before the Big Bang, which lends support to the theory that the Big Bang was not a single event, but one that occurs over and over again as the universe crunches down to a single point, then blows up again, over and over.
The idea is based on the fact that the Earth, and the rest of the known universe is occasionally bombarded with unexplained bursts of gamma rays; something that could, according to Coley and Carr, be the result of primordial black holes running out of energy and disintegrating.
Primordial black holes are thought to be of a different type than the regular kind that are formed when a supernova occurs, leaving a void that is filled by the entity that is commonly known as a black hole. Many theorists support the notion that there does exist other types of black holes that were formed in the first “moments” after the Big Bang; black holes that would be smaller and created by the energy of the Big Bang itself. In this new theory, however, Coley and Carr suggest that some of these black holes, if they do actually exist, might have been created by the collapsing universe as part of the Big Crunch, and then somehow escaped being pulled into the pinpoint singularity comprised of everything else. And then, after the Big Bang, they simply assimilated with the newly formed universe. One problem they agree on is that it would likely be impossible to tell the difference between pre and post Big Bang primordial black holes.
It’s all purely speculation of course, as no one has ever actually seen a primordial black hole, or even offered much proof that they exist, but it does raise very difficult questions; ones that are impossible for scientists much less casual observers to answer. Questions such as, if the universe contracts, then blows up, over and over, has this gone on forever? Or is it possible that our view of the universe is so limited that we’re only seeing one tiny fraction of it, and thus, any theories or explanations we offer, are little more than guesses. And finally, maybe the hardest one of all; is it possible that the universe actually goes on forever; that it has no boundaries or borders? Which would mean the Big Bang was actually little more than one tiny event going on in one small part of an endless expanse.
It’s possible that no matter how long we as a people survive, we’ll never really know the answers to such questions, which might in the end mean, we’ll just have to take our theories on faith.[/quote]
Neat proposal.
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Interesting...
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Edited by Fat Tony: 6/3/2013 12:14:07 PMCan someone explain how we would be able to know or further research if such a phenomenon is possible if all we can "visualise" is the observable universe? (time beginning after the big bang.) Then again, it is a hypothesis... Don't get angry! I'm only a mere Pathologist!
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So, this new theory ties in with how the Big Crunch and the Big Bang happens (which are also theories). Ah.
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Sounds like a lot of Hoopla.
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That's what she said
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I don't really a see a firm foundation for this theory. The whole idea of anything "predating" the big bang is an invalid premise as there is no "before" the big bang—the literal beginning of time.
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relevent
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Now that we can easily convince zealots that black holes are roads to God, space program funding will skyrocket!
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Edited by TheZealEffect: 6/2/2013 4:46:34 AMYo Dawg, I heard you like Big Bangs, so I put a Big Bang in your Big Bang so you can Big Bang while you Big Bang. To put it simply.
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Silly Durandal; all you had to do was hide in a black hole.
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COOL always thought this theory was more plausible than that of the Big Bang being the 'first event'.
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This reminds me of the intro to Stephen Baxter's book Exultant.
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Edited by Arbiter 739: 6/1/2013 9:24:23 PMSpace science is making less and less sense. At least "theories" are always just that. This will undoubtedly be revised sometime later in my lifetime.
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Edited by Broseph Stalin: 6/1/2013 5:57:49 PMI suppose that is a possibility, but I don't see much evidence to support this theory. and even if these black holes predated the Big Bang, they would be immeasurably small in size. The pre Big Bang universe was smaller than a single quark and immeasurably dense.
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Interesting read
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How are gamma ray bursts caused by these primordial black holes distinguishable from modern black holes?
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A little off topic but who comes up with these names? The big bang? The big crunch? Sounds like a cereal. This is the birth, death and rebirth of the universe were talking about here, correct? We need cooler names flood.
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I have my own theory on how everything started, screw you Big Expansion.
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So, the Big Bang was a rebirth of the universe?
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I don't get how a black hole could exist outside of the universe. If black holes are ultra-dense clumps of matter with an inescapable gravity well, how could it have escaped being pulled into the singularity? And even if it did, it would need space-time to have its gravity well.
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[i]Escape will make me a god.[/i] Well, I guess we know what became of Durandal. I can't actually remember what happened in either Durandal or Infinity.
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Interesting but it says it's all speculation so we shouldn't get too excited.
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I spend a lot of my time researching these topics as a hobby. I focus more on what is beyond the known universe. Does it have borders or is it infinite? But can it even be infinite? What is beyond in any direction. It has to have some sort of overall form rather than an endless sea of black. Or does it have to? Is all life simply a fluke or result of larger goings on beyond or comprehension? I think so. We may never know, before we even get close to answering these questions all things in our area could be long dead.
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Fascinating!
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I just jizzed gamma rays.
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Wait... how the -blam!- do black holes run out of energy and disintegrate?