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the Wilkinson Microwave Anisotropy Probe (WMAP) mapped out a region in the Eridanus Constellation which had cosmic microwave background radiation (CMB) that was cooler than the surrounding area. Such a large, cool region is estimated to be only ~0.2% likely to occur in the primordial CMB.In August 2007, Rudnick, Brown & Williams [5] found a dip in NVSS galaxy number counts in the Cold Spot, suggesting there might be a supervoid there. McEwen et al. [6] independently found the correlation using a wavelet analysis of the entire area of sky covered by the survey, though they did not explicitly advance the supervoid suggestion.
Although large voids are known in the universe, a void would have to be unusually large to explain the cold spot, perhaps 1000 times larger in volume than expected typical voids. It would be 6-10 billion light-years away and nearly one billion light-years across, and would be perhaps even more improbable to occur in the universe than the WMAP cold spot would be in the primordial CMB.
It is centered at the galactic coordinate lII = 207.8°, bII = −56.3° (equatorial: α = 03h15m05s, δ = −19d35m02s).
It is in the Southern hemisphere of the Celestial sphere. The anisotropy of the star density in the night sky makes the galactic coordinate system very useful for coordinating surveys, both those which require high densities of stars (at low galactic latitudes) and those which require a low density of stars
In August of 2007 two papers appeared within days of each other on astro-ph. Both have used an extragalactic survey (the NVSS) to demonstrate that the density of radio sources as projected on the sky is anomalously low in the direction towards the Cold Spot as predicted. The first[5] used a wavelet analysis of the entire area of sky covered by the survey, while the second[6] examined the number of sources and smoothed brightness distribution at the position of the Cold Spot alone. arXiv (pronounced archive, as if the X were the Greek letter χ) is an archive for electronic preprints of scientific papers in the fields of physics, mathematics, computer science and quantitative biology which can be accessed via the Internet. ... The NRAO VLA Sky Survey is a radio survey and associated astronomical catalogue which was generated using the Very Large Array (VLA)
prevenge:
imagine a latticework of Octahedron shaped universes
all tightly packed together going on forever.
or maybe packed into another shape.. which is packed into others.
wecomeinpeace
the theory that this void is the mark of a parallel universe is testable. The theory stands or falls based on the prediction of a matching void in the "southern hemisphere" of the universe.
Sunsetspawn
the squeezing of our universe by another would cause spacetime to
warp in the opposite direction that it normally does under the influence of mass.
Would that be a collision of universes?
Would that be another big bang?
ezziboo
the "multiverse" theory suggests that other universes may "operate" via totally
exotic physical properties and this area could be one of those multiverses.
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this area could be one of those multiverses.
Originally posted by CuriosityStrikes
I heard this might have been a mistake.
SOURCE
Now you see it, now you don't. A giant hole in the cosmos that shocked astrophysicists last year may not exist after all. A re-examination of the area has found that the "void", which supposedly contained far fewer stars and galaxies than expected, could be a statistical artefact.
This is EXACTLY how I imagined it when I was reading the description. It kind of makes scenes when you think about it, but I'm also going to read up on this a little bit. Thanks for the links.
Originally posted by constantwonder
no the article is not saying this space is extra dimensional its saying it may be the imprint of another universe I.E the many worlds theory. The extra dimensional theories out their say that these extra dimensions would exsist inside our universe all around us as if we were floating in higher diemsional space. They would also exsist in other universes aswell...
Its like Michio Kakus Bubbles in a tub explanation where there are many many universes floating inside a higher dimensional space.
so if another soap bubble was nuding up against ours it would bend and warp the space in that area causing the matter near it to move away or slide down the slope of the curved space caused by the nudge creating an area of void in our bubble.
[edit on 15-11-2008 by constantwonder]
Originally posted by defcon5
Even you yourself are using a site on the Theory of Evolution in your post.
Even inside the sciences the word theory picks out several different concepts dependent on the context. In casual speech , scientists don't use the term theory in a particularly precise fashion , allowing historical accidents to determine whether a given body of scientific work is called a theory, law, principle or something else. For instance Einstein's relativity is usually called "the theory of relativity" while Newton's theory of gravity often is called "the law of gravity." In this kind of casual use by scientists the word theory can be used flexibly to refer to whatever kind of explanation or prediction is being examined.
Finally, in pedagogical contexts or in official pronouncements by official organizations of scientists one gets a definition like the following:
According to the United States National Academy of Sciences,
"Some scientific explanations are so well established that no new evidence is likely to alter them. The explanation becomes a scientific theory. In everyday language a theory means a hunch or speculation. Not so in science. In science, the word theory refers to a comprehensive explanation of an important feature of nature supported by facts gathered over time. Theories also allow scientists to make predictions about as yet unobserved phenomena.
A scientific theory is a well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment. Such fact-supported theories are not "guesses" but reliable accounts of the real world. The theory of biological evolution is more than "just a theory." It is as factual an explanation of the universe as the atomic theory of matter or the germ theory of disease. Our understanding of gravity is still a work in progress. But the phenomenon of gravity, like evolution, is an accepted fact."
The primary advantage enjoyed by this definition is that it firmly marks things termed theories as being well supported by evidence. This would be a disadvantage in interpreting real discourse between scientists who often use the word theory to describe unsupported but intricate hypothesises. However, in an educational or mass media setting it is almost certain that everything of the form "X theory" is an extremely well supported and well tested theory. This causes the theory/non-theory distinction to much more closely follow the distinctions useful for consumers of science (should I believe it or not).
The term theory is regularly stretched to refer to speculation that is currently unverifiable. Examples are string theory and various "theories of everything". In the strict sense, the term theory should only be used when describing a model derived from experimental evidence and is provable (or disprovable). It is considered sufficient for the model to be in principle testable at some undetermined point in the future.
Smith and Huterer claim that by making equally valid (though different) choices regarding the luminosity cut-off and the area of the cold spot to concentrate on, you can make the void disappear. Smith says, you can even find a region with an unusually high number of galaxies within the cold spot with the same degree of statistical significance. Since Rudnick’s paper did acknowledge certain “statistical uncertainties”, this news doesn’t come as a huge surprise for some.
“I think Smith and Huterer have made a good case that there is no void in the radio data at this location,” says WMAP theorist David Spergel of Princeton University.
Originally posted by LordBucket
Sunsetspawn
the squeezing of our universe by another would cause spacetime to
warp in the opposite direction that it normally does under the influence of mass.
...ok, so we're arbitrarily assuming that these two universes are connected only at the poles?
And we're assuming that those connections are connected in such as way as to allow forces to be conveyed between the two universes through in ways that are not possible through the points at which these universes are not connected?
And we're assuming that "poles" even exist based purely on the extend of this universe that we happen to be able to see based on the light that is accessible to us? And we're assuming that the connections between these universes exert torsion forces on one another?
Why are we assuming these things to explain a big patch of empty space?
Would that be a collision of universes?
Would that be another big bang?
Do you worry about the space above your keyboard "colliding" with the space below your keyboard?
Originally posted by Lecter
Big bang was the result of a parallel universes crashing with another one. Could this be the location of where it originated? Very interesting....
Originally posted by LordBucket
hypothesis; she describes the hole as “… the unmistakable
imprint of another universe beyond the edge of our own“.
There is a large area devoid of matter. Check.
Therefore that area connects to an alternate universe. Huh...what?
How exactly does this make sense?
Originally posted by Sunsetspawn
Here's a little food for thought. If this hypothesis is correct, could this opposite spacetime warping ever reach a critic limit, say, an infinite amount, like how a black hole is a seemingly infinite curviture caused by mass with zero volume? Would that be a collision of universes? Would that be another big bang? Are we about to witness the birth of another universe, and perhaps the death of ours? With such reveresed gravity, the explosion would accelerate outward at the same speed at which matter accelerates inwards towards a singularity. Maybe it will only be a localized big bang, a white hole perhaps? This is all speculation, anyway...