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

Gas giants are large planets mostly composed of helium and/or hydrogen. Although these planets have dense cores, they don't ...

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 ...

New observations from NASA's James Webb Space Telescope (JWST) suggest that even extremely massive gas giants — once thought ...

Using the James Webb Space Telescope (JWST), astronomers have discovered a new dwarf galaxy, which received designation ...

"Until now, it was unknown what type of star would remain after the merger." ...

Astronomers have discovered how "forever young" stars stay blue and bright despite being almost as old as the universe.

It’s an open secret in astronomy that, practically wherever the James Webb Space Telescope (JWST) looks in the sky, a vast, clump-filled mist fills its view. But luckily for everyone marveling at JWST ...

NASA's James Webb Space Telescope has spotted a young star flinging heat-formed crystals outward on a cosmic conveyor belt, offering a new clue to how comets evolve.

Go behind the scenes with the James Webb Space Telescope, the most powerful observatory ever launched, as it reveals secrets ...

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 ...

With an image from the James Webb Space Telescope, NASA finds clues outside the solar system that explain crystals born in ...