We’ve grown up with the idea that the universe will expand forever, meaning the "cosmological constant" is positive. What if it's negative?

Astrophysicists have presumed for nearly a century that the universe will just keep expanding for all eternity, driven by an ...

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

In a new study, physicists have proposed that the Universe could one day reverse its expansion and collapse in a dramatic event known as the "Big Crunch." ...

A new study predicts the Universe will stop expanding in 11 billion years and collapse in a "Big Crunch" around 20 billion ...

For centuries, humanity has pondered the ultimate fate of the universe. From theories of infinite expansion to the concept of ...

Researchers propose that black holes may emit dark energy, possibly explaining the universe's accelerating expansion.

Dark energy and dark matter refers to the unseen energy and matter components of the Universe. Dark matter is invisible, non-baryonic matter hypothesized to explain phenomena including gravitational ...

Evolving dark matter may explain cosmic acceleration. Observations support a mixed model. For years, a stubborn puzzle has sat at the center of the standard cosmological model. The evidence clearly ...

A new study argues that dark matter and dark energy might be illusions caused by the universe’s forces fading over time. For many years, scientists have thought that dark matter and dark energy make ...

A new theory suggests dark matter and dark energy may be illusions, caused by the gradual weakening of nature’s fundamental ...

Researchers at the University of Ottawa suggest that if the fundamental strengths of nature's forces, such as gravity, change ...