Comet 3I/ATLAS will get closest to Earth on Dec. 19, and astronomers will be watching.

This interstellar vagabond is only the third large interstellar visitor that we have ever discovered — an asteroid or comet ...

"A bit like dinosaurs on Earth — they were enormous and primitive. And they had short lives, living for just a quarter of a ...

In a glimpse of the early universe, astronomers have observed a galaxy as it appeared just 800 million years after the Big ...

Between inflation and primordial nucleosynthesis, a mysterious early matter era may have birthed the first black holes and ...

Interstellar comet 3I/ATLAS will make its closest approach to Earth on 19 December, offering astronomers a rare early ...

A surprisingly mature spiral galaxy named Alaknanda has been spotted just 1.5 billion years after the Big Bang—far earlier ...

Yu-Jing Qin, a postdoctoral researcher at California Institute of Technology (Caltech), led a series of spectroscopic ...

The first pulsar was discovered in 1967 by Jocelyn Bell Burnell. Finding these mysterious signals forever changed astronomy.

Webb traced the light of a dying star, supernova GRB 250314A, from when the universe was only 730 million years old.

Using the James Webb Space Telescope, a team of international researchers have discovered chemical fingerprints of gigantic ...

Researchers using the James Webb Space Telescope spotted huge stars leaking nitrogen in an early galaxy, hinting that such ...