The existence of massive, elliptical galaxies in the early universe has puzzled astronomers for two decades. An international ...

Scientists are exploring the origins of the Amaterasu particle, an extremely energetic cosmic ray first detected in 2021, which carries unprecedented energy levels.

It's well established that the universe is expanding, but there's serious disagreement among scientists over how fast it's ...

You might think galaxies can’t ever find each other in our runaway cosmos, but it turns out gravity can sometimes overcome ...

The James Webb Space Telescope and the Chandra X-ray Observatory have captured the clearest image yet of a galaxy cluster in the making, seen when the universe was only one billion years old.

What: New analyses using early observations from the European Space Agency’s Euclid mission examine how galaxy mergers ...

Among a "field of galaxies;" the James Webb Space Telescope captured spiral galaxy LEDA 2046648, a billion light-years from ...

Discover seven unusual galaxies defying scientific predictions, from impossibly bright early universe objects to astrophysics ...

The young galaxy cluster existed about 12.8 billion years ago and has an estimated mass 20 trillion times that of the sun ...

"JADES-ID1 is giving us new evidence that the universe was in a huge hurry to grow up." ...

A flat plane of dark matter beyond the Local Group may explain why nearby galaxies move away from us instead of falling ...

A roundup of photographs from around the region this week.