The Same Everywhere? Cosmology

[MolaKule]

Does the universe actually look the same everywhere? Isotropic or anisotropic, that is the question.​

" Fundamental principles of the universe called into question by two physicists​

One of the most basic and accepted truths about the universe is that it's pretty much the same everywhere you look. In other words, there is no "up" or "down" in the cosmos. No direction has more structure, more galaxies—more stuff—than any other. Cosmologists take this sameness for granted; it's one of their foremost maxims, called the cosmological principle. But what if this dogma isn't true at all?

A new paper published Wednesday in Nature by two physicists calls the cosmological principle into question. They argue that the universe's structures do look significantly different depending on the direction you look. "In this survey, we find there are large-scale structures which define special directions," says Francesco Sylos Labini, a physicist at the Enrico Fermi Research Center in Rome, Italy and one of the study's authors.

Using data from the Dark Energy Spectroscopic Instrument (DESI), Labini and his co-author claim that the universe's structures are far more complicated than existing models suggest, violating one of cosmology's most sacred ideas."

https://www.yahoo.com/news/science/...Bu5e5JB4fxDSwOAb8vCzNhH6-k_dWcHasUwQOiIHrZqm3

Detection of anisotropic cosmic structures on a gigaparsec scale​

• Francesco Sylos Labini &
• Marco

https://www.nature.com/articles/s41586-026-10702-5

 

[OilStained]

Is the universe not flat?

 

[burbguy82]

It seems to me, that if a random, unplanned, event..... distributed the materials of the universe......the results of this randomness, would be random, and thereby fundamentally different

Makes sense to an idiot like me.

I think to achieve the same result, using different circumstances require more than a random sequence of events and billions of years to blend up a s star let alone galaxy.

All things would would have to been dispersed nearly evenly, and the formation of celestial bodies would have to begin at the same time with\ no communication.

I would also th\ing\ th\at will untold amounts of visible examples, th\at we would see all stag\es of th\e formation of said bodies, but as I understand, th\at is not exacttly th\e case.

This is my opinion.

 

[97prizm]

Does the universe actually look the same everywhere? Isotropic or anisotropic, that is the question.​

" Fundamental principles of the universe called into question by two physicists​

One of the most basic and accepted truths about the universe is that it's pretty much the same everywhere you look. In other words, there is no "up" or "down" in the cosmos. No direction has more structure, more galaxies—more stuff—than any other. Cosmologists take this sameness for granted; it's one of their foremost maxims, called the cosmological principle. But what if this dogma isn't true at all?

A new paper published Wednesday in Nature by two physicists calls the cosmological principle into question. They argue that the universe's structures do look significantly different depending on the direction you look. "In this survey, we find there are large-scale structures which define special directions," says Francesco Sylos Labini, a physicist at the Enrico Fermi Research Center in Rome, Italy and one of the study's authors.

Using data from the Dark Energy Spectroscopic Instrument (DESI), Labini and his co-author claim that the universe's structures are far more complicated than existing models suggest, violating one of cosmology's most sacred ideas."

https://www.yahoo.com/news/science/...Bu5e5JB4fxDSwOAb8vCzNhH6-k_dWcHasUwQOiIHrZqm3

Detection of anisotropic cosmic structures on a gigaparsec scale​

• Francesco Sylos Labini &
• Marco

https://www.nature.com/articles/s41586-026-10702-5

Isn't the night sky very different if you look up at the south pole vs north pole?

 

[Pablo]

Depends on how fast you/we/anything are moving.

 

[fantastic]

I think both ideas have merit. But agree that there would certainly be odd forms of the universe in its vast space. But we can certainly see direction on a smaller scale in comparison. Until we learn more throw up the ideas...

 

[JeffKeryk]

Fascinating.