For decades, astronomers have known that supermassive black holes lurk at the hearts of essentially all large galaxies, ...

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

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

NASA’s James Webb Space Telescope has turned up a tiny set of galaxies in the early universe that look deceptively simple but ...

An inexplicably hot, fast-growing cluster of galaxies in the early universe has scientists questioning theories of galactic ...

After combing through NASA's James Webb Space Telescope's archive of sweeping extragalactic cosmic fields, a small team of ...

New paper led by UC Santa Cruz undergraduate suggests that long-dormant galaxies deemed to be dead may actually be stunted by ...

The galaxy cluster appears hotter and more mature than it should for its young age, challenging what we think we know about ...

Gas within the cluster, which existed merely 1.4 billion years after the Big Bang, is at least five times hotter than ...

Scientists at the University of Missouri have identified a small group of unusual objects in the early universe. Using NASA's ...

Astronomers announced the discovery of a starless cloud of hydrogen gas, a pristine relic of the cosmos that is almost as old as time itself.

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