The universe's expansion may actually have started to slow rather than accelerating at an ever-increasing rate as previously ...

Evidence now suggests the universe’s expansion has started to slow, not speed up. The findings imply dark energy is weakening ...

A remarkable new study challenges the findings of Nobel Prize winning research into how our universe has changed over time.

Korean scientists studying Type Ia supernovae have found strong evidence that the universe's expansion is not accelerating, ...

For several decades, evidence has suggested that the expansion of the universe is accelerating. Crucial to those estimates were the use of standard candles, celestial events of the same luminosity ...

The popular consensus among scientists is that the universe will continue expanding until the bitter end. A team of ...

Astronomers may have misread cosmic acceleration for 27 years. The universe may be slowing down, not speeding up.

Scientists have discovered that dark matter, the universe's most mysterious "stuff," obeys gravity on vast cosmological ...

Astrophysicists at the University of Chicago have developed physics-based models suggesting that dark energy could be changing over time. Dark energy, the mysterious force causing the universe to ...

While aboard, astronauts have conducted thousands of studies, from tracking space’s effects on the human body to exploring ...

Dark energy—the term used to describe whatever is causing the universe to expand at an increasing rate—is one of the universe’s greatest mysteries. The most widely accepted theory currently suggests ...

Black holes are eaters of all things, even radiation. But what if their rapacious appetites had an unexpected side effect? A new study published in Physical Review Letters suggests that black holes ...