If there is an absolute law in the universe, it’s that nothing can travel faster than the speed of light. Space is big, and ...

Why is the universe expanding at an ever-increasing rate? This is one of the most exciting yet unresolved questions in modern ...

The Universe is immense. Our most powerful telescopes observe galaxies whose light has taken more than 10 billion years to ...

However we do not have to worry about the universe-obliterating Big Rip yet because if it happens it would happen in about 22 billion years.

Our universe appears to be doing so now, which means that over time more and more stars are disappearing outside of our view.

What is the biggest object in the universe? Learn more about the biggest objects in the universe, including galaxies, galaxy clusters, and dark matter.

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 ...

Mathematical quirks of our universe have led some cosmologists to wonder whether the cosmos was actually born in a black hole ...

Evolving dark matter may explain cosmic acceleration. Observations support a mixed model. For years, a stubborn puzzle has sat at the center of the standard cosmological model. The evidence clearly ...

A more precise distance to the Coma galaxy cluster was measured. This measurement increases the discrepancy between observed and predicted universe expansion rates. The discrepancy, called the Hubble ...

In recent years, one of the most troubling puzzles in astrophysics has grown more urgent. Scientists have realized that the universe seems to be expanding faster than expected, throwing a wrench into ...