Scientists say it's the earliest galaxy seen doing this (so far). Astronomers have caught an immensely ancient galaxy ...

In simplest terms, the rate at which the universe expands on paper doesn’t match actual astronomical observations. That speed ...

New research suggests that the largest cosmic structure is even bigger and closer to Earth than we knew. It goes against ...

Our sun, like all stars, is made mostly of hydrogen and helium. They are by far the most abundant elements, formed in the ...

In the grand puzzle of the cosmos, one question continues to defy easy answers: how fast is the universe expanding?

For the first time in history, we can explore the universe through a rich blend of senses—seeing, touching, and hearing ...

Cosmologist Katie Mack breaks down what the latest findings about dark energy mean for our universe’s future. Either way, it won’t be happy.

"No existing galaxy formation model within our standard cosmological paradigm can currently explain how this galaxy came to ...

By mapping the brightest explosions in the universe, scientists may have uncovered a megastructure that defies our ...

A new study suggests the universe may rotate -- just extremely slowly. The finding could help solve one of astronomy's biggest puzzles.

Astronomers have discovered a rare kind of galaxy that seems to be missing one of the universe’s most important ingredients: ...

Discover new insights into neutron star masses and formation. Learn how recent findings are reshaping astrophysics and ...