Dark energy may be the most mysterious substance ever proposed, but many scientists are certain it exists. Why?

The rapid acceleration of the universe’s expansion continues to challenge our understanding of fundamental physics. Why the universe is expanding faster and faster remains one of the most intriguing ...

The accelerating expansion of the universe is usually explained by an invisible force known as dark energy. But a new study ...

The Dark Energy Survey Collaboration collected information on hundreds of millions of galaxies across the universe using the ...

Researchers in Germany argue that a modified theory of gravity could explain universal expansion, removing dark energy from ...

To explain these observations, they proposed a new kind of energy that is responsible for driving the universe’s accelerated expansion: dark energy. Astrophysicists now believe dark energy makes up ...

In an unprecedented step, researchers crafted a detailed model compatible with the universe’s accelerated expansion.

David Weinberg receives funding from the National Science Foundation and NASA that supports his dark energy research. Ashley Ross receives funding from Lawrence Berkeley National Lab to support his ...

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 ...

A recent study by Rajendra Gupta, published in "Galaxies," proposes that cosmic phenomena conventionally ascribed to dark matter and dark energy can be explained by the temporal weakening of ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) (THE CONVERSATION) Gravity pulls us to earth, a lesson you learn viscerally the first ...

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 ...