We all know that everything kicked off when the Big Bang exploded our universe into reality, right? Well, not necessarily. A ...

The Cosmic Microwave Background carries with it a record of events throughout the 13.8-billion-year history of the universe. When you purchase through links on our site, we may earn an affiliate ...

Dive into 25 cosmic mysteries science can't explain, from dark matter to dark energy. Explore the universe's most baffling ...

Even when you remove the bright stars, the glowing dust and other nearby points of light from the inky, dark sky, a background glow remains. That glow comes from the cosmic sea of distant galaxies, ...

It's well established that the universe is expanding, but there's serious disagreement among scientists over how fast it's happening. Two of our best ways of measuring the cosmic expansion rate, the ...

Spread the loveThe cosmos is presenting astronomers with a perplexing riddle: the universe is expanding at a rate faster than scientists had anticipated. This phenomenon, often referred to as the ...

By studying galaxy clusters separated by hundreds of millions of light-years, Penn physicist Patricio Gallardo and ...

Black holes that formed before the Big Bang could still exist today as ‘cosmic fossils’, potentially helping to explain the mysterious dark matter that shapes galaxies across the Universe, according ...