Why is the universe expanding at an ever-increasing rate? This is one of the most exciting yet unresolved questions in modern ...

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

Astrophysicists at the University of Chicago have developed physics-based models suggesting that dark energy could be ...

For two decades, scientists believed the cosmological constant, known as λ (lambda), was positive. That meant the Universe ...

If recent discoveries that dark energy is evolving hold any water, our Universe will collapse under its own gravity on a ...

so the universe’s expansion rate is slowing.” The Yonsei University team compared the “supernova brightness correction results” with other cosmic observations. To do this, they used baryon acoustic ...

The night sky may look calm, but behind the glowing points of light lies a violent and complex process of creation. Stars, ...

the measured rate of the Universe’s expansion — a key parameter in cosmology since its introduction in 1929. Incidentally, the Hubble constant is not constant. Because the inverse Hubble constant ...

Black holes are eaters of all things, even radiation. But what if their rapacious appetites had an unexpected side effect? A new study published in Physical Review Letters suggests that black holes ...

A new study by physicists predicts that the universe could one day collapse in a reverse Big Bang, offering fresh insight into how it might all end.

Are we alone? It's one of the most basic questions of human existence. People have been trying to answer it for millennia in ...