# University of Ottawa: CCC+TL cosmological model gives a Universe age of 26.7 billion years

- Published: 2026-11-09 14:57 UTC
- Section: Sky & Space › Astronomy
- Tags: CCC+TL model, age of the Universe 26.7 billion years, covarying coupling constants, tired light, ΛCDM, SPARC galaxy rotation curves, Bullet Cluster, GLIMPSE program, early galaxies, James Webb Space Telescope
- URL: https://realtech.media/news/rt-ba298a44be02a72af15efc2c_university_of_ottawa/

**Physicists at the University of Ottawa tested the CCC+TL model, which, by their account, explains observations without dark matter and dark energy. A JWST test is planned.**

![University of Ottawa: CCC+TL cosmological model gives a Universe age of 26.7 billion years](https://realtech.media/media/2026/11/0327e4152061a9ad.jpg)
*Universe Magazine*

Researchers at the University of Ottawa, Professor Rajendra Gupta and postdoctoral fellow Nikolaos Samaras, published in the journal Universe the results of testing a new cosmological concept, Universe Magazine reports. According to the authors, the CCC+TL model can explain key astronomical observations without dark matter and dark energy. It puts the age of the Universe at 26.7 billion years. [1]

## The idea behind CCC+TL

CCC+TL stands for Covarying Coupling Constants plus Tired Light. According to the theory, phenomena previously attributed to invisible substances result from a gradual evolution of the fundamental physical constants that set the interaction of particles and forces. [1]

The standard ΛCDM model has long faced a lack of direct evidence for dark matter or dark energy, and the appearance of galaxies that look too mature for the early Universe. To test CCC+TL, the researchers had to rewrite the base codes and the Einstein and Friedmann equations, because simply modifying the existing algorithms was not possible. [1]

## Comparison with observations

In the calculations, the model matched observations of primordial nucleosynthesis, the abundance of hydrogen, helium and other light elements formed right after the Big Bang. [1] Its predictions also agreed with cosmic chronometers, which measure the expansion rate of the Universe from the ages of galaxies.

The authors applied the model to 175 galaxies from the SPARC catalogue and reproduced their rotation curves without dark matter. [1] For the Bullet Cluster the model showed preliminary agreement: the additional gravitational effect is explained by the new equations rather than by hidden mass.

The main advantage, according to the material, is an explanation for the massive, already formed stellar systems seen in the early Universe. In the standard theory the age of the Universe at cosmic dawn was only about 300 million years, which is not enough for gravity to assemble large structures. At the same redshift CCC+TL gives an age of 4.6 billion years. This leaves galaxies time to grow, making them roughly 12 times larger in size and mass than the standard model assumes. [1]

The predictions are to be tested soon. Within the GLIMPSE research program, astronomers will use the James Webb Space Telescope to search for objects with a redshift above z≈50. If ΛCDM lacks the time to explain galaxies at such distant stages, CCC+TL has no comparable time limit. [1]

## Sources

1. [Universe Magazine](https://universemagazine.com/vsesvitu-27-mlrd-rokiv-nova-teoriya-pohytnula-osnovy-kosmologiyi)

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Source: RealTech, realtech.media — https://realtech.media/news/rt-ba298a44be02a72af15efc2c_university_of_ottawa/