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 ...

The universe is approaching the midpoint of its 33-billion-year lifespan, a Cornell physicist calculates with new data from ...

If ultimately true, the universe will reach its maximum size around 11 billion years from now. At that point, physics (and ...

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 ...

This hypothesis is not new. It was given the affectionate nickname of Big Crunch, and says that the accelerated expansion of ...

A controversial prediction about black holes and the expansion force of the universe could explain a cosmology mystery ...

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