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 ...

Imagine looking out over a beautiful vista. The sun glances off the snowy peaks of distant mountains, a river winds through rolling hills. There is something wonderful about beholding the contours of ...

The accelerating expansion of the Universe may not be real, but could just be an apparent effect, according to new research published in the journal Monthly Notices of the Royal Astronomical Society.

CHRISTCHURCH, New Zealand — Dark energy has been modern physics’ most successful placeholder, a theoretical force invented to explain why galaxies seem to be racing away from each other at ...

Scientists studied the magnetic fields of a five billion light-years away galaxy. In this picture: Scientists detected X-rays coming from a type Ia supernova for the first time. Digital Sky ...

Cosmologists have long wondered whether dark energy and the accelerating expansion of the universe is an illusion. Now the evidence backing this idea is mounting. Back in 1998, astronomers made a ...

Enter dark energy. It’s one of the most debated and intriguing missing puzzle pieces of modern physics – a mysterious form of energy believed to uniformly permeate all of space. In the current most ...

Back in 1998, astronomers made a curious discovery. By studying the behavior of distant supernovas, they concluded that the universe is not just expanding, but that this expansion is accelerating. The ...