For a quarter century, cosmology has rested on a simple but audacious idea: that a fixed “cosmological constant” drives the ...

Nearly everything in the universe is made of mysterious dark matter and dark energy, yet we can’t see either of them directly ...

The rapid acceleration of the universe’s expansion continues to challenge our understanding of fundamental physics. Why the ...

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

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

But there are several important anomalies, including a widely debated one called the Hubble tension. It is named after Edwin ...

Contrary to popular belief, our universe may not be constantly expanding after all. A groundbreaking study by South Korean ...

Dark energy, a mysterious force that scientists believe is behind the accelerated expansion of the universe, is weakening — which could result in the universe over the course of billions of years ...

What is dark energy? Why does dark energy seem to be weakening? Is our universe part of a larger multiverse? What lies beyond the boundary of a black hole? The universe seems to be rotating, and if ...

This study could transform our understanding of the future of the universe and raise the possibility that the universe may ...

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