Cosmologists are quietly confronting a possibility that would have sounded absurd a generation ago: the standard picture of a ...

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

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

To astronomers in the 1990s, these three facts were self-evident: The universe is expanding; all the matter in the universe is gravitationally attracting all the other matter in the universe; ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. An illustration of galaxies curving the fabric of space-time in an expanding universe. A new ...

In an unprecedented step, researchers crafted a detailed model compatible with the universe’s accelerated expansion.

Researchers in Germany argue that a modified theory of gravity could explain universal expansion, removing dark energy from ...

Cosmologists have long treated black holes and the Big Bang as separate extremes of physics, one swallowing light, the other birthing space and time. A provocative line of research now suggests those ...

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

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 ...

In the grand puzzle of the cosmos, one question continues to defy easy answers: how fast is the universe expanding? Astronomers have tried two main methods to figure it out, but their numbers don’t ...

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 ...