It’s always amazing, and more than a little humbling, when the universe reminds us that our “common sense” is provincial, ...

The universe may have been born out of nothing, with an "anti-universe" twin where time runs in the opposite direction—rather than exploding from an infinitely small and dense point, or "singularity." ...

Knotted structures once imagined by Lord Kelvin may actually have shaped the universe’s earliest moments, according to new ...

Scientists are peering into the universe's mysterious Cosmic Dawn using the faint whispers of hydrogen radio waves emitted over 13 billion years ago. These signals, particularly the elusive ...

Dark energy, a mysterious force that scientists believe is behind the accelerated expansion of the universe, is weakening — which could result in the universe over the course of billions of years ...