Dark energy is one of the greatest mysteries of the universe. This mysterious force is thought to be accelerating the ...

New strategies may soon allow scientists to test dark energy theories within our own solar system, linking cosmic-scale physics to local observation. Science advances through a cycle of proposing ...

Most explanations rely on "dark energy" to explain the Universe's accelerating expansion rate, but a new study takes a different path.

Dark energy, one of the most mysterious concepts in astronomy, has baffled the world's greatest minds for decades. Dark energy is a placeholder term scientists use to refer to whatever is causing the ...

Astrophysicists at the University of Chicago have developed physics-based models suggesting that dark energy could be changing over time. Dark energy, the mysterious force causing the universe to ...

Although some compelling evidence exists to support the idea that a repulsive force similar to dark energy exists, it has yet to be directly observed or measured. To circumvent this uncomfortable ...

Our current cosmological model—known as lambda cold dark matter, or ΛCDM—relies on hypothesized dark energy to explain the accelerating expansion of the universe. However, one competing theory known ...

An international team of researchers led by the Leibniz Institute for Astrophysics Potsdam (AIP) has shed light on a ...

Scientists could be wrong about dark energy. But they’re right about gravity, a new study suggests. Dark energy, the mysterious phenomenon that causes the expansion of the cosmos to accelerate, is ...

In the search to understand how the universe came to be, a new theory is rewriting the script. Instead of one massive, fiery birth like the Big Bang, this idea suggests the cosmos has been growing in ...

Last spring, a team of nearly 1,000 cosmologists announced that dark energy — the enigmatic agent propelling the universe to swell in size at an ever-increasing rate — might be slackening. The ...