Astronomers have been confounded by recent evidence that the universe expanded at different rates throughout its life. New ...

The Universe is expanding faster than ever, and recent findings fuel the ongoing debate among cosmologists. For decades, ...

New research confirms the Universe is expanding faster than theoretical models predict, intensifying the Hubble tension.

Credit: Deanne Fitzmaurice/National Geographic Image Collection/Alamy Our universe began with a bang—a big bang. The explosion stretched the very fabric of spacetime, sending superheated matter ...

There's a significant imbalance between matter and antimatter in our universe, but a strange particle called "the Majoron" ...

After decades of study, scientists sound genuinely optimistic about the possibility of detecting primordial black holes, which might explain dark matter.

Cosmology in the 1960s In the mid-20th century, cosmology was an emerging discipline, grappling with two competing theories: the Big Bang theory and the steady-state model. The Big Bang theory ...