Cosmologists have long struggled to determine whether the universe's accelerating expansion is being driven by a simple ...

Two of the biggest physics breakthroughs during the last decade are the discovery that wispy subatomic particles called neutrinos actually have a small amount of mass and the detection that the ...

Why is the expansion of our Universe accelerating? Twenty-five years after its discovery, this phenomenon remains one of the greatest scientific mysteries. Solving it involves testing the fundamental ...

The universe's expansion may actually have started to slow rather than accelerating at an ever-increasing rate as previously thought, a new study suggests. "Remarkable" findings published today in ...

Certain types of supernovae, or exploding stars, are more diverse than previously thought, a University of Arizona-led team of astronomers has discovered The results, reported in two papers published ...

Dark energy is one of the greatest mysteries in modern physics, comprising nearly 70% of the universe and causing its acceleration and the separation of galaxies over time. The concept emerged in the ...

Alex Filippenko, a professor of astronomy at UC Berkeley and a member of the National Academy of Sciences and the American Academy of Arts and Sciences, will present “The Accelerating Universe and the ...

The universe's expansion may actually have started to slow rather than accelerating at an ever-increasing rate as previously thought, a new study suggests. Subscribe to our newsletter for the latest ...