Another "No Dark matter" theory surfaces

[Maxmars]

I seem to be collecting these ...  I promise I cannot say I actually agree (or disagree) since the math eludes me.

From ScienceDaily: New research suggests that our universe has no dark matter
 

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A University of Ottawa study published today challenges the current model of the universe by showing that, in fact, it has no room for dark matter.

In cosmology, the term "dark matter" describes all that appears not to interact with light or the electromagnetic field, or that can only be explained through gravitational force. We can't see it, nor do we know what it's made of, but it helps us understand how galaxies, planets and stars behave.

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The article makes a strangely unfamiliar point to me I had commonly heard the age of the universe to be some 13.8 billion years old... yet within this article is a quote that differs...
 

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"The study's findings confirm that our previous work ("JWST early Universe observations and ΛCDM cosmology") about the age of the universe being 26.7 billion years has allowed us to discover that the universe does not require dark matter to exist," explains Gupta. "In standard cosmology, the accelerated expansion of the universe is said to be caused by dark energy but is in fact due to the weakening forces of nature as it expands, not due to dark energy."

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(bold is mine)

When did I fall so far behind... 26.7 billion years?  I thought that JWST information was rejected by scientists.  I definitely missed something big... or is this just research 'tug of war?'

[Notran]

Interesting story.
It's not just dark matter that doesn't exist but dark energy too.

Reminder, the existence of dark matter and dark energy are not yet proven but to be fair there is a lot of evidence pointing into these directions.

[Maxmars]

Interesting story.
It's not just dark matter that doesn't exist but dark energy too.

Reminder, the existence of dark matter and dark energy are not yet proven but to be fair there is a lot of evidence pointing into these directions.

Agreed.  There is a meaningful gap in our knowledge.  We know something must account for the effects we measure, and the theoretical "dark" matter and energy might fit that gap.  But it is far from proven for sure.  Inferred maybe, perhaps even deduced, but not proven.

I am just glad that they are 'working it out' and haven't declared dark matter as a matter of 'scientific faith' ... which has happened in the history of science from time to time.

[UltraBudgie]

Another for the collection. From NYT:

‘More Than a Hint’ That Dark Energy Isn’t What Astronomers Thought
New data further challenge the best scientific theory of the history and the structure of the universe. But a separate recent result reinforces it.

An international team of astronomers on Wednesday unveiled the most compelling evidence to date that dark energy — a mysterious phenomenon pushing our universe to expand ever faster — is not a constant force of nature but one that ebbs and flows through cosmic time.

Dark energy, the new measurement suggests, may not resign our universe to a fate of being ripped apart across every scale, from galaxy clusters down to atomic nuclei. Instead, its expansion could wane, eventually leaving the universe stable. Or the cosmos could even reverse course, eventually doomed to a collapse that astronomers refer to as the Big Crunch.

The latest results bolster a tantalizing hint from last April that something was awry with the standard model of cosmology, scientists’ best theory of the history and the structure of the universe. The measurements, from last year and this month, come from a collaboration running the Dark Energy Spectroscopic Instrument, or DESI, on a telescope at Kitt Peak National Observatory in Arizona.

“It’s a bit more than a hint now,” said Michael Levi, a cosmologist at Lawrence Berkeley National Laboratory and the director of DESI. “It puts us in conflict with other measurements,” Dr. Levi added. “Unless dark energy evolves — then, boy, all the ducks line up in a row.”

Article: https://www.nytimes.com/2025/03/19/scien...nergy.html
No paywall: https://archive.is/H23dH

And a little gem:



https://x.com/martianwyrdlord/status/190...4630108388

[Sirius]

Ben Davidson has been very vocal on this for years.  Wonder what else he is right about?

[IdeomotorPrisoner]

They're trying to eliminate dark matter/energy from the equation. So they stretched out the universe a bit at a non-accelerated rate, which made them double the age... and that explains the quirky redshifted effects at the edge of the universe, near the restaurant. It loses energy the more it expands from what I gather.

[sahgwa]

plot twist. the physical effects and other data will change the more they are looked at and never be nailed down, simply become slipperier and smaller ad inifinitum. 
Like a cat chasing it's tail they will never discover the true speed of shift or the 'edge' of reality, because, it is all Mind.  :|

[UltraBudgie]

Here is a playlist of the new DESI results!

https://www.youtube.com/playlist?list=PL...HM9cG_gXcw

[Sirius]

The universe was there before people lived and named it. 

Remember, that we all are brothers
All people, beasts, trees and stone and wind
We all descend from the one great being
That was always there
Before people lived and named it
Before the first seed sprouted

https://genius.com/Heilung-opening-ceremony-annotated