Add Yahoo as a preferred source to see more of our stories on Google. An artist's conception of a gas giant world (the large planet on the right) in another solar system. The distant world WASP-121b ...

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

Gas giants possibly developed slowly in the solar system. They developed cores layer by layer within a disk of ice and dust ...

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

Deep in the older, denser reaches of the Milky Way, there is a red dwarf star that shouldn’t exist — or at least, its family ...

For over 50 years, we thought we knew the size and shape of Jupiter, the solar system's largest planet. Now, Weizmann Institute of Science researchers have revised that knowledge using new data and ...

Artwork depicting the exoplanet TOI-6894b around a red dwarf star. This planet is unusual because, given the size/mass of the planet relative to the very low mass of the star, this planet should not ...

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 ...

(CNN) — What is big, with a fluffy, cotton candy-like composition? Turns out, a planet. An international coalition of astronomers has newly discovered an unusual planet, dubbed WASP-193b, that’s about ...

A recent astronomical discovery has shaken long-held beliefs about how planets form. For decades, scientists thought that stars much smaller than our Sun couldn't form giant planets. That theory just ...

Many of the stars in the Milky Way galaxy are small, dim red dwarfs—stars much smaller than the sun in both size and mass. TOI-6894, located far away from Earth, is one of them. Astronomers previously ...

The first evidence of a giant planet orbiting a dead white dwarf star has been found in the form of a disc of gas formed from its evaporating atmosphere. The Neptune-like planet orbits a star a ...