A new study casts doubt on the universe’s accelerating expansion, suggesting dark energy might be weakening over time.

A new study suggests observational evidence that matter falling into black holes could be converted into dark energy, a component comprising 70% of the cosmos and accelerating its expansion. This ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

Dark energy makes up about 70% of the universe and causes its expansion to accelerate. It's different from dark matter; dark energy pushes space apart, while dark matter pulls things together. We ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. An illustration shows a figurative representation of the cosmic web breaking apart in later eras ...

New hints from one of the most extensive surveys of the cosmos to date suggest that mysterious dark energy may be evolving in ways that could shift how astronomers understand the universe. Dark energy ...

The expansion of the universe could be a mirage, a potentially controversial new study suggests. This rethinking of the cosmos also suggests solutions for the puzzles of dark energy and dark matter, ...

“Dark energy” is a term scientists use to refer to whatever is causing the universe to expand faster over time. We don’t know exactly what dark energy is—no one has ever directly seen or measured ...

"Although there have been multiple efforts to understand the nature of dark energy, its composition, and its manifestation in the universe," one expert says, "we know embarrassingly little about it." ...

The standard cosmological model known as Lambda-CDM (ΛCDM) proposes that dark energy is a constant force in the universe. However, an early “hint” in a new detailed map from the Dark Energy ...

Dark energy could have an accomplice that helps it slow the growth of large cosmic structures, such as vast superclusters made up of clusters of galaxies. A new analysis of astronomical data suggests ...