The 11th day of the 18th annual Space Telescope Advent Calendar features a new view of the heart of a nearby spiral galaxy.

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

JWST uncovers evidence of ancient “monster stars” whose extreme chemistry may explain the origins of early supermassive black ...

A stronomers using the JWST have traced the source of a long-duration gamma-ray burst back to a supernova that exploded ...

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

The two galaxies shown here, NGC 6278 and PGC 039620, are representative of the more than 1,600 galaxies analyzed in a new study. Both galaxies are ...

Astronomers spend careers watching stars collapse and explode, but an eruption spotted in July pushed beyond anything seen before. The event, called GRB 250702B, released high-energy radiation for ...

We hear that space is huge, but our brains quietly turn that into something we can imagine, which is nowhere close to the ...

This is the strongest evidence yet of a rocky planet beyond our solar system with an atmosphere. Astronomers using the James ...

Astronomers have used the James Webb Space Telescope (JWST) to discover that a distant "hot Jupiter" planet has two ...

The hunt is on for terrestrial exoplanets in habitable zones, and some of the most promising candidates were discovered ...

Astronomers observed the supermassive black hole in galaxy NGC 3783 ejecting ultra-fast winds after a powerful X-ray flare.