Hubble Space Telescope imagery Neptune has revealed that the planet's clouds are disappearing. Credit: NASA Goddard Space ...

He recently added a new mystery to the list: Is China quietly building the world’s biggest telescope? He would like to know, ...

The Hubble Space Telescope has made a groundbreaking discovery that could forever alter the way we understand the cosmos. For ...

Astronomers have caught a rare type of black hole in the act of devouring a star—an event that lit up the universe in X-rays.

The swirling spiral galaxy in this NASA/ESA Hubble Space Telescope image is NGC 3285B, which resides 137 million light-years ...

The Hubble Telescope and Chandra X-ray Observatory saw an enigmatic intermediate-mass black hole lighting up in X-rays, ...

Object 3I/ATLAS will make close approaches to Jupiter, Mars and Venus, which could allow aliens to stealthily plant spy ...

Could our location in space be skewing cosmic measurements? A new study suggests a giant void may explain the Hubble tension.

NASA’s Hubble Space Telescope and NASA’s Chandra X-ray Observatory have teamed up to identify a new possible example of a ...

Cosmology is currently in a crisis known as the Hubble tension: the local universe appears to be expanding about 10% faster ...

Hubble captured this stellar explosion in NGC 3285B, 137 million light-years away, offering new insights into the expanding ...

In the sprawling Hydra constellation, 137 million light-years away, lies NGC 3285B—a dazzling spiral galaxy recently ...