“Our newly-devised model stretches the galaxy formation time by a several billion years, making the universe 26.7 billion years old, and not 13.7 as previously estimated” Rajendra Gupta — Adjunct professor of physics in the Faculty of Science at the University of Ottawa What is the basis for this claim and why are media outlets and influencers promoting it so wildly? Press release: https://www.uottawa.ca/about-us/media/news/reinventing-cosmology-uottawa-research-puts-age-universe-267-137-billion-years https://phys.org/news/2023-07-age-universe-billion-years-previously.html Paper [paywalled] https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/stad2032/7221343?login=true Win a meteorite: join my mailing list here ? briankeating.com/list ✉️ JWST early Universe observations and ΛCDM cosmology by R. Gupta Monthly Notices of the Royal Astronomical Society, Published: 07 July 2023 Abstract "Deep space observations of the James Webb Space Telescope (JWST) have revealed that the structure and masses of very early Universe galaxies at high redshifts (⁠z∼15⁠), existing at ∼0.3 Gyr after the BigBang, may be as evolved as the galaxies in existence for ∼10 Gyr. The JWST findings are thus in strong tension with the ΛCDM cosmological model. While tired light (TL) models have been shown to comply with the JWST angular galaxy size data, they cannot satisfactorily explain isotropy of the cosmic microwave background (CMB) observations or fit the supernovae distance modulus vs. redshift data well. We have developed hybrid models that include the tired light concept in the expanding universe. The hybrid ΛCDM model fits the supernovae type 1a data well but not the JWST observations. We present a model with covarying coupling constants (CCC), starting from the modified FLRW metric and resulting Einstein and Friedmann equations, and a CCC + TL hybrid model. They fit the Pantheon + data admirably, and the CCC + TL model is compliant with the JWST observations. It stretches the age of the universe to 26.7 Gyr with 5.8 Gyr at z=10 and 3.5 Gyr at z=20⁠, giving enough time to form massive galaxies. It thus resolves the ‘impossible early galaxy’ problem without requiring the existence of primordial black hole seeds or modified power spectrum, rapid formation of massive population III stars, and super Eddington accretion rates. One could infer the CCC model as an extension of the ΛCDM model with a dynamic cosmological constant." Gupta uses the tired light model and hybrid ΛCDM models as potential explanations for the high redshift galaxy size data observed by the James Webb Space Telescope. The tired light model is a modification of the standard cosmological model that proposes that photons lose energy as they travel through space, leading to a redshift that mimics the effects of cosmic expansion. In contrast, the hybrid ΛCDM models combine aspects of both the standard cosmological model and the tired light model to better fit the observed data. These hybrid models include additional parameters that describe the effects of tired light on the cosmic expansion rate and the growth of large-scale structures in the universe. Note that the CCC+TL model provides a much larger age increase than the ΛCDM+TL model at high redshifts. Specifically, at redshifts 10 to 20, the CCC+TL model provides a 10 to 20-fold increase in age, giving enough time for large, massive galaxies to form. In contrast, for the ΛCDM+TL model, corresponding age increases are only 1.7 Gyr and 0.7 Gyr. While the stretch is modest at the current epoch, it becomes very significant at high redshift, with the cosmic time stretch being up to 5.8 Gyr at ? = 10 and 3.5 Gyr at ? = 20. Watch my video with Nobel Prizewinner Adam Riess -- Runaway Universe: Tensions Between Measurements & Predictions of the Hubble Constant. Einstein Wrong https://youtu.be/b3Tx1g8gKmY ... https://www.youtube.com/watch?v=_45U7IjIJDk

Join my mailing list https://briankeating.com/list to win a real 4 billion year old meteorite! All .edu emails in the USA ?? will WIN! Why do we tend to believe that we are always right? And how does this affect the scientific process and science as a whole? One of the main goals of my channel is to promote scientific literacy and improve the decision-making processes of you, my dear audience. That’s why I decided to take you on a profound journey into the complex world of psychological biases, explicitly focusing on confirmation bias. From climate change to lobotomies and even Charles Darwin himself, confirmation bias has shaped the world of science from the very beginning and continues to shape it today. So what’s behind this strange phenomenon that seems universal for humankind, and how can we overcome it? Find out in today’s episode of Into the Impossible! Additional resources: ➡️ Follow me on your fav platforms: ✖️ Twitter: https://twitter.com/DrBrianKeating ? YouTube: https://www.youtube.com/DrBrianKeating?sub_confirmation=1 ? Join my mailing list: https://briankeating.com/list ✍️ Check out my blog: https://briankeating.com/cosmic-musings/ ?️ Follow my podcast: https://briankeating.com/podcast Into the Impossible with Brian Keating is a podcast dedicated to all those who want to explore the universe within and beyond the known. Make sure to subscribe so you never miss an episode! #intotheimpossible #briankeating #confirmationbias ... https://www.youtube.com/watch?v=pONTprg6Ytg