Dark energy — an unknown energy source that is causing our Universe’s expansion to accelerate – doesn’t actually exist, according to new r

Dark Energy is Misidentification of Variations in Kinetic Energy of Universe’s Expansion, Scientists Say

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2024-12-25 12:30:04

Dark energy — an unknown energy source that is causing our Universe’s expansion to accelerate – doesn’t actually exist, according to new research.

This artist’s impression shows the evolution of the Universe beginning with the Big Bang on the left followed by the appearance of the Cosmic Microwave Background. The formation of the first stars ends the cosmic dark ages, followed by the formation of galaxies. Image credit: M. Weiss / Harvard-Smithsonian Center for Astrophysics.

Dark energy is commonly thought to be a weak anti-gravity force which acts independently of matter and makes up around two thirds of the mass-energy density of the Universe.

The Lambda Cold Dark Matter (ΛCDM) model, which has served as the standard cosmological model for quarter of a century, requires dark energy to explain the observed acceleration in the rate at which the cosmos is expanding.

Astrophysicists base this conclusion on measurements of the distances to supernova explosions in distant galaxies, which appear to be farther away than they should be if the Universe’s expansion were not accelerating.

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