According to new research, an invisible "mirror universe" of particles that interacts with our world only through gravity could be the key to solving a major mystery in cosmology today - the Hubble constant problem
According to new research, an invisible "mirror world" of particles that interacts with our world only through gravity could be the key to solving a major mystery in cosmology today - the problem of Hubble's constant.
Hubble's constant is the current rate of expansion of the universe. The predictions of this rate—from the standard cosmology model—are significantly slower than the rate discovered through our most accurate local measurements. Many cosmologists are trying to solve this discrepancy by changing the current cosmology model. The challenge is to do this without destroying the fit between the Standard Model predictions and many other cosmological phenomena, such as the cosmic background radiation. Determining whether such a cosmological scenario exists is the question that the researchers, including Francis-Yan Cyr-Racin, a senior lecturer in the Department of Physics and Astronomy at the University of New Mexico, and researchers Faye Ge and Lloyd Knox at the University of California, Davis, are working to answer.
According to NASA, cosmology is the scientific study of the properties of the universe as a whole on a large scale. Cosmologists investigate ideas such as dark matter, dark energy, and whether there is one universe or many, called parallel universes. Cosmology encompasses the entire universe from birth to death with mysteries and secrets about every step.
Now Cyr-Rasin, Ge, and Knox have discovered a previously overlooked mathematical property of cosmological models that could, in principle, allow for a faster rate of expansion without nearly changing the other very precisely tested predictions of the standard cosmological model. They found that a uniform scaling of the gravitational constant and the photon-electron scattering rate leaves most of the dimensionless cosmological observables almost unchanged.
"Basically, we're pointing out that many of the observations we make in cosmology have an inherent symmetry within the rescale of the universe as a whole. This might provide a way to understand why there seems to be a discrepancy between different measurements of the expansion rate of the universe."
The result opens up a new approach to match cosmic background radiation and observations of large-scale structures with high values of Hubble's constant H0: to find a cosmological model in which it is possible to realize the silomial transformation without violating any measurement of a quantity not protected by symmetry. This work opened a new path to solving a challenging problem. Building additional models may bring consistency with the two constraints that have not yet been met: the main abundance of deuterium and helium that fits the current theory.
If the universe utilizes this symmetry in some way, it leads the researchers to a very interesting conclusion: there is a mirror universe that is very similar to ours but invisible to us except through the gravitational influence on our world. This dark sector of the "mirror world" will enable an efficient elimination of the rates of the gravitational constant while maintaining the agreement with the average photon density that is accurately measured today.
More of the topic in Hayadan:
Comments
According to Popper, an idea is scientific if it is possible to conduct an experiment that may disprove it. But obviously we cannot do experiments in parallel universes but only in our own private universe. Therefore the delusional idea of a parallel universe is unscientific and takes a place of "honor" next to ideas such as dark matter and energy.
I'm glad that the science commentators such as Erasmus, Dango and Dror Yisrael Cohen share the same opinion.
Please respond gently
Sabdarmish Yehuda
An interesting clip about the level of connection between the contents of massive stars that exploded (supernovae) and our world and us.
https://www.youtube.com/watch?v=_krwRDfYAsM
You can learn about the problem with Hubble's constant and measurements in this excellent clip
https://www.youtube.com/watch?v=i9MyA3aRmfE
And about the reason for the research and the (very extreme) explanation that was offered, which can explain anything.
Oded Bar On
The article you linked to is rubbish.
That's exactly the point, and it's true, we're finally coming to an understanding!
Those interested in a serious cosmological model that includes predictions that can be used to test the model are invited to refer to http://www.periodicphysics.com
The truth is that the universe consists of the articles in science. Each article presents a new universe that is true at that moment until the article after it.
This.
Let's just hope that the restoration of the mirror is not in the style that appears in the Stranger Things series...
We live in a universe with more dimensions than the three or four that we are able to experience. That is why there are phenomena that can only be explained through the additional dimensions.
Unclear, but fixed.
Half of the text is the same sentence
I think there is an elf named Schmelzing who leaves all the observations at lower km as they are, but adjusts the Hubble constant to match the observations of the expansion rate of the universe.
What is the difference between saying there is a parallel universe and an elf? is nothing. One terminology sounds scientific and the other is delusional, but both are equally delusional. Isn't it simpler to say that we currently don't have a complete theory to explain this, and we're still looking? Imagine if Galileo or Newton had created a parallel universe just to explain irregularities between the equations and the phenomena. We were in a very unhappy place today.
Why this is similar
To one who shoots the arrow and draws a circle around it. It is discovered that the universe is expanding at an accelerated rate so that the model of the bang on which hypotheses are built. None of us slept. Determine that there should be dark energy. And dark matter in a huge amount compared to what is visible.
Now in order for the business to work out, you need to add some mysterious mirror universe.
interesting
A few more circles need to be drawn around a theory that is so shaky that you start to admit that it is shaky
Where are the editors? Why does the title repeat itself 5 times?
Previous discussion on the subject
https://www.hayadan.org.il/%D7%A8%D7%A9%D7%99%D7%9E%D7%AA-%D7%94%D7%9E%D7%A9%D7%90%D7%9C%D7%95%D7%AA-%D7%A9%D7%9C-%D7%94%D7%90%D7%A1%D7%98%D7%A8%D7%95%D7%A0%D7%95%D7%9E%D7%99%D7%94-%D7%9C%D7%A2%D7%A9%D7%A8-%D7%94%D7%A9%D7%A0
There is only a single universe in the infinite space filled with passive time.
The number of stars in it is finite, its shape is the shape of a discus, and it moves in a straight line at an absolute speed of 12C
More details in the attached article.
http://img2.timg.co.il/forums/3/c8659042-cdd9-4060-b7fd-a3872d542a4b.pdf
A. Asbar
Could there be a connection to dark matter?
Masterful job of editing and proofreading this article. on the border of the unreadable
Apparently even in the parallel universe at the moment (the clocks are reversed) there are differences of opinion regarding a "to come" constant that refers to the invisible parallel universe. "From there" - meaning our universe.