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Old 03-18-2010, 10:56 PM
 
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What exactly is causing the effect termed "Dark Flow"? So far, it's still unknown. But it certainly seems strange.

News Article
SPACE.com -- Weird 'Dark Flow' Seen Deeper Into the Universe Than Ever


Video
Space.com : Mysterious Dark Flow Moves Through Universe
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Old 03-20-2010, 08:37 AM
 
Location: Sarasota, Florida
15,395 posts, read 22,279,484 times
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Quote:
Originally Posted by NightBazaar View Post
What exactly is causing the effect termed "Dark Flow"? So far, it's still unknown. But it certainly seems strange.

News Article
SPACE.com -- Weird 'Dark Flow' Seen Deeper Into the Universe Than Ever


Video
Space.com : Mysterious Dark Flow Moves Through Universe
I'll have to check out the links thoroughly, as this is one of my favorite subjects...I'll respond with my usual jargon and videos...LOL. .
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Old 03-21-2010, 10:27 AM
 
Location: Sarasota, Florida
15,395 posts, read 22,279,484 times
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Quote:
Originally Posted by NightBazaar View Post
What exactly is causing the effect termed "Dark Flow"? So far, it's still unknown. But it certainly seems strange.

News Article
SPACE.com -- Weird 'Dark Flow' Seen Deeper Into the Universe Than Ever


Video
Space.com : Mysterious Dark Flow Moves Through Universe
Great links..I thought I'd relink to a thread I started along similar lines to provide posters with additional links and more information...this phenomena still baffles me somewhat...but if the MULTIVERSE theory is correct, it all makes perfect sense now.
Multiverse - Wikipedia, the free encyclopedia
Many-worlds interpretation - Wikipedia, the free encyclopedia
Wapedia - Multiverse (science (http://wapedia.mobi/en/Multiverse_(science - broken link))

DARK FLOW>>> //www.city-data.com/forum/scien...tter-dark.html


YouTube - Mysterious Cosmic 'Dark Flow' Tracked Deeper into Universe


YouTube - The Universe Darkly


YouTube - The universe - How big are you?


YouTube - Gravity and the Great Attractor - Robot Astronomy Talk Show (George Takei, Mark Hamill, Ed Wasser))


YouTube - Largest Objects in the Universe .
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Old 03-21-2010, 03:28 PM
 
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Quote:
Originally Posted by PITTSTON2SARASOTA View Post
Great links..I thought I'd relink to a thread I started along similar lines to provide posters with additional links and more information...this phenomena still baffles me somewhat...but if the MULTIVERSE theory is correct, it all makes perfect sense now.
Thanks for digging up that thread. I had forgotten about it although I remembered the subject had been discussed before.

What we see from the Dark Flow phenomena is what's happening. What we don't understand is why (what's causing it). A close encounter multiverse scenario is certainly a plausible explanation. What it really gets down to is a greater need to better understand the universe.

Some possible options ---
1. Bubble universes that are merging.
2. Megaverse. The structure of our universe might just be local, similar in some ways to galaxies or superclusters only much larger. Other universe structures are just too far to ever see, but one is close enough to exert a gravitational attraction pulling on galaxies and distorting our universe.
3. Colliding branes.
4. Some kind of entanglement of superstrings.
5. An exotic and as yet unknown force.
6. Some kind of remnant "turbulence" within the universe left over from the initial inflation phase of the Big Bang.
7. Some kind of localized flaw or rip in the "fabric" of space-time.
8. The universe might be propogating itself and forming a new universe.
9. It might be a copy of our own universe that's slightly out of dimensional sync enough to render it as invisible.

Whatever the cause is, the motion of the galaxies involved has been observed over a period of time. They're moving in the same direction as if something of enormous mass that's invisible or far beyond the observable universe is attracting them. While it suggests something beyond the observable universe is involved, we don't really know that to be the case. The best that can be done currently is to speculate. Apart from that it's just a weirdly unknown phenomena.

Before the first fly-by around Mars, we had no real idea exactly what the surface of Mars looked like. There were just guesses that it might be rather Earthlike in some ways. Instead, we found it looked a lot more like the Moon in many ways, full of craters, rocks, dust, and lifeless on the surface. No plants. No flowing water. No sign of any thriving Martian cities . Although in some ways Mars is much more Earthlike than the other planets or the Moon, it's still an extremely hostile environment any way you look at it.

Unless a conclusive explanation about the "Dark Flow" has already been determined (and I don't think it has been yet), I'd be somewhat inclined to initially lean toward thinking it may be a phenomena within our own universe, such as example #6.
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Old 03-22-2010, 04:03 AM
 
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My theory is it just is another black hole like object.
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Old 03-22-2010, 11:41 PM
 
Location: Sarasota, Florida
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Originally Posted by JustNobody View Post
My theory is it just is another black hole like object.
Even a BLACK HOLE with TRILLIONS of SOLAR MASSES would be many orders of magnitude to TINY exert this strong of a gravitional pull; plus as far as I am aware the largest BLACK HOLES are BILLIONS of Solar Masses....I would think...IMHO...that's as big as they get...maybe TRILLIONS; but that is still like 10 to the 50th power too "small". Theoritically I would not entirely rule it out; but it is pretty much IMPOSSIBLE as far as I understand PHYSICS/COSMOLOGY.

NightBazaar..I'll get back to you with a detailed response...but IMHO...YOU covered all the BASES. BLACK HOLES ARE OUT!!!!
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Old 04-01-2010, 05:24 PM
 
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Originally Posted by JustNobody View Post
My theory is it just is another black hole like object.

If it's a black hole and within the observable universe we'd likely see some evidence of its effect. What the observations indicate so far are this:

- At least 1500 galactic clusters are all moving in the same direction toward a common point at a speed of about 1-2 million miles per hour. For the sake of comparison, that'd be like having the Andromeda galaxy collide into our Milky Way galaxy two and a half hours from now.
- The clusters are about 2.5 billion light years from us. A galactic cluster can contain 2 to hundreds of individual galaxies. The number of individual galaxies in the Dark Flow could be hundreds of thousands of galaxies.
- Over a 5-year period of observing this phenomena, the path of the clusters appears to have increased in length to about 6 billion light-years (half of the the universe away).
- It's theorized that these clusters are being pulled by the gravitational attraction of a structure with an enormous mass.
- Based on the effects seen so far, the distance of the unseen structure is probably hundreds of billions of light-years beyond the observable universe.
- There's no evidence that the structure is on a collision course with our universe. If anything, it would probably be held back because our universe's inflation.

Several guesses have been tossed around as to what the structure might be. It could be another universe not far from ours, or it could be some strange warp of space-time. It's also possible that what we call the observable universe might only be one tiny cluster in a much larger structure of other clusters, each the size of our own universe.

It could also be some kind of odd anomaly or structure left over from the Big Bang. For example, we know that the Cosmic Microwave Background Radiation glow left over from the Big Bang is uneven and granulated mixed with areas that are greater in density and areas of less density. The effect of Dark Flow could possibly be some other kind of anomaly of mass density that resulted during the first moments of the Big Bang's inflationary period. It is possible the rate of inflation could have been much faster than the speed of light It wouldn't have been until later that the inflation would slow down and cool. The point is that large dense structure could have ultimately formed far beyond the visible universe.

I know, it's huge stretch of the imagination. LOL!
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Old 04-01-2010, 09:56 PM
 
Location: Sarasota, Florida
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IMHO...it is another Universe, within our Multi-Verse and/or an impending BRANE collision, forming a new Universe...I can "see" no other explanation for the incredible mass necessary to exert this magnitude of gravitional energy.
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Old 04-02-2010, 02:12 PM
 
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Originally Posted by PITTSTON2SARASOTA View Post
IMHO...it is another Universe, within our Multi-Verse and/or an impending BRANE collision, forming a new Universe...I can "see" no other explanation for the incredible mass necessary to exert this magnitude of gravitional energy.

I agree that it's not completely out of the realm of possibility, but as yet, the cause of Dark Flow still remains unknown. There are a lot of "ifs" about it. If it's related to a potential collision of branes, or involves another universe, we'll likely never really know, at least not directly. Another "if" is if the Big Bang began as a result of colliding branes, could another Big Bang be in the making? What would that do to the universe? On the other hand, if the unknown structure is 100s of billions of light-years away as thought to be, it'd be a very long time before it would be of any concern. Even then, I'd imagine any trace of life (with origins from Earth) that far off in the future would be long extinct by then. There might not even be much of a universe left by then if the universe continues expanding.

Regarding brane collisions, it depends on what branes are. My understanding is that they can be thought of as existing as different dimensional plains or configurations. It brings to mind theories of super strings and brane-worlds. But that's probably more suited for another thread.
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Old 04-02-2010, 08:56 PM
 
Location: Sarasota, Florida
15,395 posts, read 22,279,484 times
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Superstring theory - Wikipedia, the free encyclopedia

M-theory - Wikipedia, the free encyclopedia

This link postulates what came BEFORE the BIG BANG....namely a BRANE collision.
Ekpyrotic universe - Wikipedia, the free encyclopedia

Life beyond our universe: Physicists explore the possibility of life in universes with laws different from our own

Physicists Calculate Number of Parallel Universes

Multiverse (http://johnsonm.com/garden_universe/Encyclopedia/Multiverse.htm - broken link)

UNFORTUNATELY THIS VIDEO IS IN FRENCH!

YouTube - Avant le Big Bang


YouTube - String Theory Illustrated


YouTube - Elegant Universe -- Can String Theory detect God?


YouTube - Who lives in the eleventh dimension? - Parallel Universes - BBC science


YouTube - Before the Big Bang: looking back in time - Parallel Universes - BBC science

More mind boggling cool stuff????
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