A distant 'exomoon' the size of Jupiter is changing how we think about the cosmos.

Astronomers have discovered a rare planetary system 71 light-years away, where a Jupiter-sized world orbits a brown dwarf, ...

A rocky exoplanet 48 light-years from Earth has offered the 'strongest evidence yet' that other planets besides Earth could ...

By Will Dunham WASHINGTON, July 22 (Reuters) - Scientists are documenting a planetary system in the Milky Way galaxy that is ...

A new study found a four-carbon sugar named “erythrulose” in a molecular cloud in the interstellar medium (ISM) roughly ...

For decades, Io, Jupiter's innermost large moon, has fascinated scientists with its violent volcanic eruptions and colourful ...

It’s easy to see Jupiter as you travel past Westfield in Aroostook County, but you might not notice the newest installation ...

A newly discovered object in a distant solar system doesn't fit neatly into the current definitions of moon or planet.

August 2026 will give the inhabitants of the Earth the opportunity to see a rare large parade of planets — a phenomenon that ...

A giant planet had been hiding inside one of astronomy’s most closely studied planetary systems, concealed by a bright disk of cosmic dust. Webb revealed Beta Pictoris d through atmospheric traces of ...