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

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

Scientists propose a new gravity theory using Friedmann equations. Their model explains the universe’s accelerating expansion ...

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

Why the universe is expanding faster and faster remains one of the biggest open questions in physics. Current theories cannot ...

Dark matter, the invisible substance that shapes the Universe, may have had a far more dramatic beginning than scientists once believed.

Our best models of the cosmos don't add up — but that could change if the universe is actually made of a viscous 'fluid,' a ...

If dark stars existed, they would have been capable of forming in the universe before ordinary stars could have formed. When ...

Do you know what connects Edwin Hubble’s theory for an expanding universe and Albert Einstein’s cosmological constant? The ...

The universe’s accelerating expansion has long puzzled physicists. For decades, dark energy, an unseen force thought to make ...

Researchers from the University of Minnesota Twin Cities and Université Paris-Saclay have reopened one of cosmology’s oldest ...

Scientists at Fermilab’s MicroBooNE experiment have ruled out the existence of the elusive sterile neutrino, a particle ...