After a century of observations spanning the breadth of the cosmos and theoretical insights that push humanity's vision of ...

The story begins with the black hole information paradox. According to relativity, anything that falls into a black hole is ...

The Hubble Space Telescope, a cornerstone of modern astronomy, has been providing breathtaking images and invaluable data for ...

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

What if the universe remembers? A bold new framework proposes that spacetime acts as a quantum memory. For over a hundred ...

A faint radio "whisper" from ancient hydrogen reveals the universe was heating up long before it filled with starlight.

Researchers have built a small but powerful detector to find gravitational waves in a hidden frequency range. The discovery ...

A newly discovered odd radio circle in space could serve as a time capsule for the violent events that shape galaxies.

Astronomers have discovered a surprisingly "pristine" red giant with the lowest concentration of heavy elements ever seen in ...

We all need some space sometimes—but it's harder to find than you might think. How far into our universe do we have to go to ...

What is the biggest object in the universe? Learn more about the biggest objects in the universe, including galaxies, galaxy clusters, and dark matter.