A mysterious force called Dark Energy might be changing, in a way that challenges our current understanding of the nature of ...

They believed that the indefinite expansion would spread the stars so far apart that the sky would appear dark throughout and ...

A team of South Korean researchers have found that a mysterious force known as dark energy is changing our Universe in a way ...

An artist’s concept of the dark energy-driven accelerating expansion of the universe. New results suggest dark energy’s influence on cosmic expansion has weakened over time. In 2024 a shockwave ...

A new study questions dark energy's role in the universe's acceleration, suggesting it may be weakening instead.

NEW YORK (AP) — Distant, ancient galaxies are giving scientists more hints that a mysterious force called dark energy may not be what they thought. Astronomers know that the universe is being pushed ...

Studies suggest that the universe's expansion is decelerating — but what could that mean for the future of the cosmos?

By studying faint distortions in galaxy shapes across a vast region of sky, scientists probed the hidden structure of the universe. In the standard picture of the universe, nearly everything is hidden ...

Well, you see, cosmologists (like astronomers*) are simple folks. They basically model everything as so-called “perfect fluids”. What is a perfect fluid? It is stuff that has density and pressure, but ...

In deciphering the cosmic puzzle of what the nature of dark energy is, we're going to better learn the fate of the Universe. Whether dark energy changes in strength or sign is key to knowing whether ...

Paul Sutter is an astrophysicist at The Ohio State University and the chief scientist at COSI science center. Sutter is also host of "Ask a Spaceman" and "Space Radio" and leads AstroTours around the ...