Astronomers have completed the most comprehensive census of active galactic nuclei (AGN) to date, providing the clearest ...

Astronomers have long puzzled over how some massive galaxies stop forming stars and remain dormant for billions of years—even ...

The discovery of thousands more galaxies with stars ringing their main disks could help astronomers study galactic evolution ...

Webb reveals a bridge of stars linking two nearby dwarf galaxies, offering a look at how gravity reshapes galaxies and sparks ...

Webb observations of the Sextans A galaxy reveal how stars in a metal-poor areas create cosmic dust, offering clues about the ...

Both NASA’s James Webb Space Telescope and Chandra X-ray Observatory caught these two galaxies in a close embrace.

'This galaxy was developing bars 2 billion years after the birth of the universe,' says a researcher.

Astronomers working with the Hubble Space Telescope have identified an entirely new type of cosmic object. It is a cloud rich ...

Observations of ultra-massive galaxies, each containing more than 100 billion stars, show that less than 2 billion years ...

Super heated gases were seen erupting from the black hole that stretch 20,000 light-years from the core of a disk-shaped ...

Astronomers describe the discovery of the largest-known stream of super-heated gas in the universe ejecting from a nearby ...