Gas giants are massive worlds made mostly of hydrogen and helium. They lack solid surfaces, and in our solar system, Jupiter ...

Deep inside a nearby galaxy cloaked in thick clouds of gas and dust, astronomers have uncovered a surprising treasure trove of organic molecules using the James Webb Space Telescope. Peering through ...

A study led by the Center for Astrobiology (CAB), CSIC-INTA, using modeling techniques developed at the University of Oxford, ...

Relatedly, astronomers may have just pushed the upper size limit of what counts as a planet.

The James Webb Space Telescope (JWST) was designed to look back in time and study galaxies that existed shortly after the Big ...

New research reveals how quiet galactic engines can help shape entire galaxies.

In a galaxy far, far away, there lie clues to the cosmic dawn—the first few hundreds of millions of years in our 13.8-billion ...

Astronomers have found a potential new piece of the ongoing puzzle over “little red dots” (LRDs). It’s a distant smudge in ...

A distant star system with four super-sized gas giants has revealed a surprise. Thanks to JWST’s powerful vision, astronomers detected sulfur in their atmospheres — a chemical clue that they formed ...

Massive stars have an outsized influence on their environment and the galaxies they call home. These behemoths have the ...

Recent James Webb Space Telescope data confirms a decade-old theory that the universe's earliest supermassive black holes formed without stars.

Even for astronomers who have gazed upon the same cosmic object over their whole career, new portraits of these celestial bodies from the James Webb Space Telescope (JWST) have the power to delight ...