Mysterious force beyond our Universe may be pulling Galaxies towards it

Thanks - this claim has been around for about nine years, and it's still fairly controversial; there doesn't seem to be a consensus that it's a physical effect or just a statistical blip. The Dark Energy Survey will probably get us a better understanding of what's going on here.
 

Shadowprophet

Truthiness
According to the original article, they call this "Dark Flow" And yeah, I researched it and this has been a thing we've known about for about a decade now. I'm glad I looked this up, If someone didn't, they would be prone to think this was referring to the Great attractor, At a glance at the info, One could easily mistake the two. Dark flow - Wikipedia
 

Kchoo

At Peace.
What I think is cool about this is, we simply do not know. :Thumbsup:

Why is that cool, you ask? Because it gives us something to think about, something to explore and learn, something bigger than us, that we must acknowledge is bigger than us... and it gives us a reason to grow ourselves.

He hee.

I love it.
 

Dejan Corovic

As above, so bellow
Yeah, it seems that the whole idea of Dark Energy / Matter had started shaking. Basically it was based on lazy science where Dark Energy theory was tested on data that was adjusted using Dark Energy assumption. When this distortion is removed than statistical significance of dark energy supernova data falls down to 3 sigma, where scientific standard is 6 sigma.

But a new study, that negates existence of Dark Energy, is also on 3 sigma. New study shows @22:30 zero isotropy in acceleration of visible universe, or if you want, zero evidence that dark energy exists. Now study shows that we are moving in a single direction and all galaxies around us down to depth of several hundred mega-parsecs. So everybody has to wait till new radio telescope is built that can collect more data.

 
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Yeah, it seems that the whole idea of Dark Energy / Matter had started shaking. Basically it was based on lazy science where Dark Energy theory was tested on data that was adjusted using Dark Energy assumption. When this distortion is removed than statistical significance of dark energy supernova data falls down to 3 sigma, where scientific standard is 6 sigma.

But a new study, that negates existence of Dark Energy, is also on 3 sigma. New study shows @22:30 zero isotropy in acceleration of visible universe, or if you want, zero evidence that dark energy exists. Now study shows that we are moving in a single direction and all galaxies around us down to depth of several hundred mega-parsecs. So everybody has to wait till new radio telescope is built that can collect more data.


I don't buy it; that paper by Sarkar et. al was found to be flawed in several ways and a rigorous examination of their arguments yielded a far more convincing paper by highly qualified opponents that only solidified the empirical arguments demonstrating the reality of the dark energy effect:

No Dark Energy? No Chance, Cosmologists Contend | Quanta Magazine

Here's the correct data mapped out on a graph, which shows the impressive fit between the empirical data and the dark energy model:

HubbleDiagram_SN_560.jpg
 
yeah, and distance is measured with 15% error, so one can draw any conclusion that he wants.
When you use a large sample of data points, the trend in that data can still be modeled with high precision even when the uncertainty with each data point is somewhat high. Only if you limit the number of data points and fail to account for factors like interstellar dust (which are only two of the four major problems with the paper by Sarkar et. al) can it appear that the dark energy effect is debatable:

"Current measurements have already sharply improved constraints on dark energy; as a simple example, the statistical evidence for its existence, assuming a cosmological constant but not a flat universe, is nominally over 66σ."
https://arxiv.org/pdf/1709.01091.pdf
 
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