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At nearly 330 million light-years in diameter (approximately 0.27% of the diameter of the observable Universe), or nearly 236,000 Mpc3 in volume, the Boötes void is one of the largest-known voids in the Universe, and is referred to as a supervoid. Its discovery was reported by Robert Kirshner et al. (1981), as part of a survey of galactic redshifts. The center of the Boötes void is approximately 700 million light-years from Earth. Other astronomers soon discovered that the void contained a few galaxies. In 1987, J. Moody, Robert P. Kirshner, G. MacAlpine, and S. Gregory published their findings of eight galaxies in the void. M. Strauss and John Huchra announced the discovery of a further three galaxies in 1988, and Greg Aldering, G. Bothun, Robert P. Kirshner, and Ron Marzke announced the discovery of fifteen galaxies in 1989. By 1997, the Boötes void was known to contain 60 galaxies. According to astronomer Greg Aldering, the scale of the void is such that "If the Milky Way had been in the center of the Boötes void, we wouldn't have known there were other galaxies until the 1960s." The Hercules Supercluster forms part of the near edge of the void. Using a rough estimate of about 1 galaxy every 10 million light-years (about 4 times further than the Andromeda Galaxy is from Earth), there should be approximately 2,000 galaxies in the Boötes void.-Wikipedia en.wikipedia.org...
originally posted by: dfnj2015
a reply to: lostbook
Every black hole creates a white hole. Our Big Bang is the result of a star collapsing to a black hole in a previously existing space-time dimension or bubble in the fabric of quantum space foam.
What are white holes?
originally posted by: LABTECH767
a reply to: lostbook
There are a number of ramifications and possibility's concerning these super void's that have been discovered, one theory even linked them to brane theory and another to multiple big bang type event's.
But all of them are subjective what if's, as indeed are any thoery's.
As for dfn2015's note about white holes I kind of agree but don't see it in those term's and I believe he was probably thinking on one of the early conjectures about the super void's which was that a super massive black hole or a swarm of black hole's may have occurred there which is not believed to be the case any longer but was an early attempt to suggest a potential explanation for these starless deserts in the sky.
For me the black hole existed or exists in a time space continuum which follow's the same laws as our tine space continuum (but time there relative to here moves slower - at least until quantum evaporation and entropic decay in the parent and daughter continuii respectively equal out) - note TSC not Universe they are part of the same universe and not parallel reality's.
Here is my take on Black holes and White holes, think of our universe for a moment in Brane theory term's and see GRAVITY as a non local force - for example it is millions of time's weaker than electrostatic attraction for example so is actually the weakest force among many.
Now let's look at a super massive star as it collapses into a black hole in it's final moment's.
Let's look at the idea of string theory were all thing's in the universe are made of the same thing that has been called string but in it's oldest theory was called the Ether though modern scientists do not like to use ancient phrases so call it string, everything even empty space is made of this material and in string theory you may regard matter as a ripple at right angle's to the time base of space time.
So since matter is seemingly FOCUSED more through mass than it is through space and dense mass therefore has more gravity if we then revert back to BRAIN theory it become's obvious that gravity must be coming from another brane in SUPERSPACE (the hypothetical realm or highest dimension of the universe) that is in collision or peripheral contact with our own brane verse and is therefore at a 1:1 ratio in our universe per a fixed amount of (back to string theory) string, hence were that string is more densely packed per cubic meter of space there is more gravity - oddly there is also less time so is time therefore another non local phenomena?.
Now look at a star again, gravity is being lensed by all that mass (in fact it could be that gravity is the very reason that mass formed at all - if in brane theory the brane from which the non local force of gravity come's is actually in contact with our brane universe at those point's?), as it collapses it become's more and more dense and more and more gravity occupies a smaller and smaller volume of space until it becomes a black hole, around this region though gravity still leak's into our time space continuum from this rupture in space our time space continuum creates a region called the event horizon were to all intent's and purposes our time and space stop (a hole through to the brane were gravity originates it is as close as we can get to looking across from one brane to another and yes I am talking BLACK HOLE not Hawking pseudo brown holes which are not the same thing just very dense objects).
But what have we missed, yes mass surround's a tiny point does it not, the very center of the star that is collapsing is also surrounded by that mass and is therefore surrounded by a BLACK hole when it form's so it in theory also become's surrounded by an event horizon.
But on this tiny - perhaps below sub atomic level - pin point of trapped space gravity for a brief instant exceeds e and pull's outward - INVERTING the very center of this space - what is opposite to gravity - time and energy - this is a white hole, it spew's time, energy and more super string material into this void, because there is more of this time stuff it flow's faster within this new time space continuum but gravity continues to leak into it and pull on it from the parent black hole, and many years later a primitive scientist discover's an anomaly the stars and planets are not slowing down as they expand as model's predicted but are in fact accelerating, grasping at straws the theory of dark energy is coined but in fact it is a parent black hole that is doing the dirty work and pulling the universe toward the surrounding event horizon were it will eventually meet's it's demise just as that parent black hole eventually undergoes quantum evaporation and dissipates back into a silent older time space continuum as it also undergoes' it's own end.
But it get's more interesting, white hole's interesting objects, for a brief instant there output exceed's the speed of light - of course we know why? - and so even without a surrounding black hole they will inevitably create one as they push enough energy and new mass into a dense sphere around them, this in turn will create time space continuum surrounded by black hole's one around another each with slower time than the one inside the black hole that then forms AGAIN at the center surrounding the white hole and like an endless onion there are more skin universes surrounding these white holes than you could ever count.
And then add to that the fact that any TRUE black hole - not brown holes - may itself create a white hole at that subatomic point in turn creating a new TSC then you can try to figure out just how big the universe is, BIG perhaps even Infinite but a strange kind of infinite, infinite within finite.
Of course it's just a theory and every theory is nothing but circular logic based around the human psyche when looked at closely enough.
The fact is we just do not know, we have idea's, pseudo scientific belief's, religion's, and observations but in fact while OBSERVATION which is the only real science here is definable the rest is simple reasoning and as such is fallible and once you throw in higher dimensional mechanic's even the best theory soon become's a child doodling with crayons rather than a Michelangelo masterpiece.