Using HARPS and HARPS-N spectrographs, astronomers have observed a nearby K-type star designated HD 176986, known to host two ...

"The most likely explanation for the dimming is a brown dwarf – an object heavier than a planet but lighter than a star – ...

Worlds like Tatooine—the iconic twin-sun planet from Star Wars—are no longer confined to science fiction; they have entered ...

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 ...

An exoplanetary system about 116 light-years from Earth could flip the script on how planets form, according to researchers ...

The combustible sedimentary rock, better known as coal, was not only crucial to the onset of advanced technology here on Earth, but it should also be key to the development of advanced E.T.s residing ...

General relativity helps explain the lack of planets around tight binary stars by driving orbital resonances that eject or destroy close-in worlds. This process naturally creates a “desert” of ...

If a gas giant planet is big enough to ignite deuterium fusion, it becomes a brown dwarf instead of a planet. But this definition is incomplete and does not tell us how gas giants form or what ...

A newly identified planet candidate, HD 137010 b, looks strikingly Earth-like in size and orbit — but it may be colder than Mars due to its dimmer star. If it has a thick enough atmosphere, though, ...

Key takeawaysIf a gas giant planet is big enough to ignite deuterium fusion, it becomes a brown dwarf instead of a planet.

A planetary system 116 light-years from Earth has a peculiar pattern. It could flip the script on how planets form, ...

What if humanity could no longer live on Earth? Perhaps a catastrophic event forced us to find a new home among the stars.