New Research Suggests That Our Universe Has No Dark Matter

Physics professor Rajendra Gupta challenges the existence of dark matter and proposes a new cosmological model. His alternative model addresses some key observations and the age of the universe.

John Gideon Hartnett

April 8, 2024

4 minutes

angular size, covarying coupling constant, Dark Energy, Dark Matter, fudge factor, ΛCDM model, James Webb Space Telescope, Rajendra Gupta, tired light, type Ia supernovae, underdetermination

The title of this post is the title of a paper¹ published March 15 2024 in The Astrophysical Journal with a news release here. The author Rajendra Gupta, a physics professor at the University of Ottawa makes the claim that,

“There are several papers that question the existence of dark matter, but mine is the first one, to my knowledge, that eliminates its cosmological existence while being consistent with key cosmological observations that we have had time to confirm.”
ScienceDaily.com

Here is one secular cosmologist now looking to eliminate dark matter from the standard big bang model because of the disagreement (or tension) with new James Webb Space Telescope observational data. See below.

The press release explains that

By challenging the need for dark matter in the universe and providing evidence for a new cosmological model, this study opens up new avenues for exploring the fundamental properties of the universe.
ScienceDaily.com

The author has created a hybrid cosmological model. The cosmological constant is replaced with a covarying coupling constant (CCC) parameter and ‘tired light’ (TL). That means the forces of nature decrease over cosmic time and light loses energy when it travels a long distance. He has tested his model (CCC+TL) against Type Ia supernovae Pantheon+ data and it fits as well as the standard ΛCDM model. Also it fits the angular size of the alleged cosmic dawn galaxies observed by the James Webb Space Telescope, whereas they are in tension with the ΛCDM model. His CCC+TL model removes the tension with those data.

He is not the first to eliminate dark matter as others have done so in the past. But he may be the first with an alternate big bang model to fit those observational data as he says.

I published papers that fit many key observations without dark matter and even without dark energy. In 2005 tested the Carmeli cosmological model against the Type Ia supernova data.² It didn’t need any dark matter and had no dark energy by design.

I have been claiming for a long time that dark matter is a fudge factor. See Is Dark Matter the Unknown God? To get the standard big bang cosmology to fit the observational data an unknown ‘god of gaps’ was invented. I suggested that they got the physics wrong; they needed new physics. Perhaps Prof. Gupta would agree because he has used new physics to solve the problem.

Later (2015) I published A Biblical Creationist Cosmogony. No dark matter needed but I used ‘tired light’ in a static universe. See Speculation on Redshift in a Created Universe. Tired light is nothing new and was proposed a long time ago.

Another important point in this is that has been almost ignored is underdetermination in cosmology. It is a fatal weakness. Because there can never be sufficient observational parameters and there are too many unknowns all cosmologies that attempt to describe the universe are underdetermined. That means there can be different models that fit the same observational data. They are not unique. In 2013 I found that a finite bounded Carmeli model³ fits the same Type Ia data very well. This is an example of underdetermination.

The authors also claims the age of the universe is 26.7 billion years which is in tension with the standard ΛCDM model of 13.8 billion years. This highlights the underdetermination problem. Just by changing the design of the model such a key parameter is changed.

But the biblical age of the universe is only about 6000 years. There are some good models that describe that. See New Cosmologies Converge on the ASC model.

Do you realise the full ramification of this peer-reviewed article in the world’s leading astrophysics journal? It is an admission that new observational data from the JWST is undermining the once believed standard Big Bang model for the origin of the universe. Thus they must prop it up at all costs. It was being propped up by the two pseudo-entities, fudge factors, Dark Matter and Dark Energy, but Dark Matter is now questioned. But as you should know, it is all one big fairy tale.

References

Rajendra P. Gupta. Testing CCC+TL Cosmology with Observed Baryon Acoustic Oscillation Features. The Astrophysical Journal, 2024; 964 (1): 55 DOI: 10.3847/1538-4357/ad1bc6
J.G. Hartnett, The distance modulus determined from Carmeli’s cosmology fits the accelerating universe data of the high-redshift type Ia supernovae without dark matter. Found. Phys., 36, 6, 839-861, 2006.
J.G. Hartnett, A valid finite bounded expanding Carmelian universe without dark matter, Int. J. Theoretical Physics, 52 (12): 4360-4366, 2013.

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