Scientists Challenge Existence of Dark Energy in Groundbreaking Study

New research suggests cosmic expansion may result from time variations across the universe, not a mysterious force.

Researchers from the University of Canterbury propose that the universe's expansion is not uniform, challenging the need for dark energy in cosmological models.
The study introduces the 'timescape cosmology' model, which attributes perceived cosmic acceleration to variations in time flow across different regions of space.
Scientists analyzed data from over 1,500 supernovae, finding evidence that aligns better with the timescape model than with the standard Lambda Cold Dark Matter (ΛCDM) framework.
The research addresses discrepancies in current models, including the 'Hubble tension,' and offers a potential alternative explanation for the universe's observed behavior.
Future data from missions like the Euclid satellite and other telescopes will be crucial to test and potentially confirm this paradigm-shifting theory.