Changing, not constant The idea that dark energy might be changing over time is more than a provocative twist; it addresses one of the deepest puzzles in modern physics.

Imagine a star powered not by nuclear fusion, but by one of the universe’s greatest mysteries—dark matter. Scientists have ...

The new findings come from the Dark Energy Spectroscopic Instrument (DESI), which sits on a telescope at the Kitt Peak National Observatory in Arizona.

While dark energy is weakening, according to Ishak, matter is not. Weak dark energy could strengthen matter, which eventually could be the force that causes the universe to collapse on itself, he ...

The findings announced on Tuesday are part of a years-long study of the history of the cosmos focusing upon dark energy, an invisible and enigmatic force that is accelerating the ongoing expansion ...

On March 19, the Dark Energy Spectroscopic Instrument (DESI) collaboration shared its findings in multiple papers posted on arXiv and in a presentation at the American Physical Society's Global ...

Columnist and Physics How dark energy findings may inspire a new generation of physics nerds The discovery of the cosmic acceleration problem truly inspired me as a teenage physics nerd.

A new map of cosmic expansion suggests that dark energy evolves over time, hinting that the universe doesn’t work the way we thought it did ...

In the wake of bombshell findings that suggest dark energy might be weakening as the universe expands, physicists are considering replacing the standard cosmological model of the universe with ...

Cosmologist Katie Mack breaks down what the latest findings about dark energy mean for our universe’s future. Either way, it won’t be happy.

Recent findings from the DESI and DES cosmological surveys challenge the long-held assumption of a constant dark energy density, suggesting instead that it may vary over cosmic time. This ...