Distant, ancient galaxies are giving scientists more hints that a mysterious force called dark energy may not be what they ...

A shockwave caused by the galaxy NGC 7318b slamming into four other galaxies is akin to a "sonic boom from a jet fighter." ...

Black holes have captivated scientists for more than a century. How well do you know these supermassive wonders of the universe?

It all started with a Big Bang – and now scientists are on a quest to unravel the mystery behind the birth of the universe.

Back in the 1960s, Frank Drake, an American astrophysicist and astrobiologist, proposed an equation aimed at estimating the ...

In this scenario, as dark energy dissipated across the universe, so too would dark matter, and the universe would eventually grind to halt, according to Live Science. This is the “long freeze”—a ...

A cataclysmic quantum fluctuation could wipe out everything at any moment. The fact that we’re still here is revealing hidden ...

The Epoch of Reionization — the universe’s last major transition — may have happened earlier than previously thought.

NEW YORK — Distant, ancient galaxies are giving scientists more hints that a mysterious force called dark energy may not be what they thought. Astronomers know that the universe is being pushed ...

As the universe expands (as it does in a dark matter-dominated universe) the distance between us and all other stars ...