Urgent.News

What's breaking now, across thousands of outlets.

Science

Theory predicting an older universe without dark matter or dark energy passes key cosmological tests

An alternative model in which the universe is 26.7 billion years old and needs neither dark matter nor dark energy has held up against several major cosmology tests, according to a new University of Ottawa study. The research, titled "A Big Bang Nucleosynthesis Consistency Test of the CCC+TL Cosmology," is published in the journal Universe.

Theory predicting an older universe without dark matter or dark energy passes key cosmological tests

A new cosmological model suggests the universe is 26.7 billion years old and does not require dark matter or dark energy, according to a University of Ottawa study. Researchers Rajendra Gupta and Dr. Nikolaos Samaras tested the CCC+TL model, which attributes the observed effects of dark matter and dark energy to evolving fundamental constants.

The model passed several key cosmological tests, including Big Bang nucleosynthesis, cosmic chronometer measurements, and rotation curve analyses of 175 galaxies. It also predicted larger early galaxies and resolved the age discrepancy in the cosmic dawn. While the cosmic microwave background results are still unpublished and the Bullet Cluster explanation is preliminary, the model's success encourages astronomers to consider it seriously.

Written by urgent.news from Phys.org's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.

Read the original at phys.org →

More in Science

More from Saturday 7 November →