For almost a century, we have known that the universe is expanding. For several decades, evidence has suggested that the expansion of the universe is accelerating. Crucial to those estimates were the ...

CC0 Usage Conditions ApplyClick for more information. One of the fundamental ideas of cosmology is that everything looks the same in all directions if you look over large enough distances. A new study ...

For nearly three decades, the scientific community has believed that dark energy (comprising roughly 70% of the universe) acts as a kind of anti-gravity force pushing galaxies apart at an ...

A new Utah Valley University study is providing new evidence in a debate astronomers across the world haven’t been able to agree on — how fast the universe is expanding. The findings may add more fuel ...

As if dark energy weren't already mysterious and baffling enough, new research suggests that this unknown force may not be driving galaxies apart at an accelerating rate anymore. This remarkable ...

Astronomers are rethinking one of cosmology’s biggest mysteries: dark energy. New findings show that evolving dark energy models, tied to ultra-light axion particles, may better fit the universe’s ...

The universe’s expansion might not be accelerating but slowing down, a new study suggests. If confirmed, the finding would upend decades of established astronomical assumptions and rewrite our ...

But there are several important anomalies, including a widely debated one called the Hubble tension. It is named after Edwin ...

Nearly everything in the universe is made of mysterious dark matter and dark energy, yet we can’t see either of them directly ...

The rapid acceleration of the universe’s expansion continues to challenge our understanding of fundamental physics. Why the ...

This study could transform our understanding of the future of the universe and raise the possibility that the universe may ...

Studies suggest that the universe's expansion is decelerating — but what could that mean for the future of the cosmos?