If the cosmos is lopsided, the foundation of modern cosmology starts to look a little shaky.

An analysis of supernovae argues that the universe’s expansion is not speeding up, so there is no need for dark energy to exist to explain it ...

A recent paper claimed that dark energy might not exist. But new research suggests this conclusion was premature.

Add Yahoo as a preferred source to see more of our stories on Google. Astronomers have to use indirect evidence, like the explosions of Type Ia supernovae, to investigate the impacts of dark energy.

A new study using the Dark Energy Survey (DES) final datasets suggests potential inconsistencies in the standard cosmological model, known as ΛCDM. If confirmed, these findings could fundamentally ...

Dark energy—the term used to describe whatever is causing the universe to expand at an increasing rate—is one of the universe's greatest mysteries. The most widely accepted theory currently suggests ...

NASA’s Nancy Grace Roman Space Telescope will soon launch to unravel the mysteries of dark energy and dark matter ...

Last year, we reported on an exciting hint of new physics in the first data analysis results from the Dark Energy Spectroscopic Instrument (DESI)—namely that the dark energy, rather than being ...

The original version of this story appeared in Quanta Magazine. Physicists have deduced subtle hints that the mysterious “dark” energy that drives the universe to expand faster and faster may be ...

We’ve all heard these phrases at least once. But when we do, we ask what exactly dark matter and dark energy are and why are they important? Unfortunately, even some of the smartest scientists who’ve ...