Thread: Dark Flow

Hi All,

just read the following article on "Dark Flow".

http://physicsworld.com/cws/article/news/41984

and I'm interested to see what people's thoughts are.

Mine is that it's cause doesn't necessarily need to be outside of our universe or "bubble". Are there any reasons why it's cause can't be from within our own universe? i.e. could our universe be ALOT larger (but not necessarily older) than we currently believe? I'm sure the experts have thought of and dismissed this already, but i am curious non the less.

Well one hypothesis in a parallel universe idea is that our universe extends basically forever in all directions. It is so large that there are other "universes" that are just so far away, that we cannot see them. Thus there is an infinite amount of space, and an infinite amount of universes.

I don't know how they work this idea with the big bang theory which states it started the universe. But that is one of the hypothesis out there which falls under the category you mentioned of the universe being larger than we know.

As for the dark flow thing. Sounds interesting but I have no idea's on it.

Originally Posted by Haasum

Well one hypothesis in a parallel universe idea is that our universe extends basically forever in all directions. It is so large that there are other "universes" that are just so far away, that we cannot see them. Thus there is an infinite amount of space, and an infinite amount of universes.

I don't know how they work this idea with the big bang theory which states it started the universe. But that is one of the hypothesis out there which falls under the category you mentioned of the universe being larger than we know.

Well, it could work in the following way:

there could have been an infinite number of big bangs in an infinite amount of space, of which we are just one. This could potentially contradict the hypothesis that space and time were created in the instance of the big bang. Instead it would suggest that space and time have always existed, and that quantum fluctuations created each and every universe within it.

sounds like a load of turd to me though!!

Possibly it is material from another universe passing through out universe, so a different momentum?

Hello,,,,,,,,This is sneha here,,,,,, i'm new in the forum, this is my first post in this site....... I don't know how they work this idea with the big bang theory which states it started the universe. As for the dark flow thing. Sounds interesting but I have no idea's on it...........Thanks lot..........

WOW !!!!!!its great information............Thanks lot.......

"Dark Flow" Discovered at Edge of the Universe: Hundreds of Millions of Stars Racing Towards a Cosmic Hotspot

"Dark Flow" sounds like a new SciFi Channel series. It's not! Back in the Middle Ages, maps showed terrifying images of sea dragons at the boundaries of the known world. Today, scientists have observed strange new motion at the very limits of the known universe - kind of where you'd expect to find new things, but they still didn't expect this.* A huge swath of galactic clusters seem to be heading to a cosmic hotspot and nobody knows why.

The unexplained motion has hundreds of millions of stars dashing towards a certain part of the sky at over eight hundred kilometers per second.* Not much speed in cosmic terms, but the preferred direction certainly is: most cosmological models have things moving in all directions equally at the extreme edges of the universe.* Something that could make things aim for a specific spot on such a massive scale hasn't been imagined before.* The scientists are keeping to the proven astrophysical strategy of calling anything they don't understand "dark", terming the odd motion a "dark flow".

A black hole can't explain the observations - objects would accelerate into the hole, while the NASA scientists see constant motion over a vast expanse of a billion light-years.* You have no idea how big that is.* This is giant on a scale where it's not just that we can't see what's doing it; it's that the entire makeup of the universe as we understand it can't be right if this is happening.

Which is fantastic!* Such discoveries force a whole new set of ideas onto the table which, even if they turn out to be wrong, are the greatest ways to advance science and our understanding of everything. One explanation that's already been offered is that our universe underwent a period of hyper-inflation early in its existence, and everything we think of as the vast and infinite universe is actually a small corner under the sofa of the real expanse of reality.* Which would be an amazing, if humbling, discovery.

Posted by Luke McKinney.
Recommended: The "Great Wall" Of Space: Galactic Super clusters a Billion Light Years Away Extend for 5% of Observable Universe
Source:
Cosmic Dark Flow
Posted at 01:00 AM in Astronomy | Permalink


My view of the universe does allow black holes to be very much larger than anything observed in the visible universe. For example a black hole with the mass of about one fourth our visible universe could have billions of galaxies in orbit around it, the same as a normal galaxy has stars in orbit about it. If such a black hole does exist just beyond the limit we can observe and has however many illuminated galaxies in our visible universe in orbit around it, they would appear to move just as the observation describes.

Once again I would like to point out the obvious. Gravity is what causes all movement of large scale mass in the universe. So when when a great deal of mass is observed to be moving there must be a gravity source that supports it and if that fact does not fit into the standard big bang model of our universe it does not bother me a bit, because it fits just fine in my view.