Researchers have unveiled a new model for the universe’s birth that replaces cosmic inflation with gravitational waves as the ...

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

The observable universe is the portion of the cosmos that we can see or detect from Earth, limited by the speed of light and ...

According to the equations that govern black holes, the larger one of these cosmic behemoths is the lower its average density ...

Some things we see in space appear to outpace light. Now we are learning to harness these bizarre optical illusions to ...

A new study on gamma rays from the Milky Way’s center suggests dark matter particles may finally have been indirectly ...

The low carbon levels are particularly interesting, as previously discovered “pristine” or metal-poor stars generally ...

Scientists may be coming closer to confirming the existence of dark matter - the invisible stuff thought to make up more than ...

Some of the mysterious pinpricks of light at the dawn of the Universe could be a type of object we've never seen before.

An excess of gamma rays in the center of our galaxy could mean scientists have finally detected dark matter particles—or not ...

Astronomy is, in essence, an exercise in inference. We cannot touch the stars, nor scoop up galaxies in a lab. Instead, we ...

Periodically, the European Space Agency (ESA) releases images that provide breathtaking views of the cosmos, courtesy of its ...