Here’s a mind-blowing thought: what if our entire universe is actually inside a black hole? Some scientists think it’s possible, and the idea is wild. They say the Big Bang might have been the result ...

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

"It would be amazing if a simple rotation of the universe was the origin of dark energy." What is dark energy? Why does dark energy seem to be weakening? Is our universe part of a larger multiverse?

Need a refresher about 3I/ATLAS? Here's everything to know about the interstellar object, including when the latest observations will be made.

"I think it's natural to take a break and wonder whether we are fundamentally thinking about this in the wrong way." Dark matter could be made from tiny black holes formed when so-called "dark baryons ...

A team of researchers proposes a new vision of the Universe's first moments. Their model eliminates the need for traditional speculative hypotheses. Cosmologists have long worked with the inflation ...