Dark-energy evidence suggests the universe will end in a “big crunch” roughly 20 billion years from now. The universe is nearing the halfway point of what may be a 33-billion-year lifespan, according ...

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

How would the universe end? Neil DeGrasse Tyson thinks everything in the universe is going to be pulled to shreds at the sub-atomic level. The current director of the Hayden Planetarium at the ...

Astrophysicists have presumed for nearly a century that the universe will just keep expanding for all eternity, driven by an invisible force called dark energy. But new data suggest that this is ...

UC Santa Cruz physicist Stefano Profumo has put forward two imaginative but scientifically grounded theories that may help solve one of the biggest mysteries in physics: the origin of dark matter. In ...

"I think it's natural to take a break and wonder whether we are fundamentally thinking about this in the wrong way." Dark matter could be made from tiny black holes formed when so-called "dark baryons ...

In theory, cinematic universes are about longevity. Franchises like "Star Trek," "Star Wars," or the Marvel Cinematic Universe span countless mediums and projects of all shapes and sizes. They jostle ...

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