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

Have astronomers observed the first exomoon, or have they spotted a weird object that could challenge the very concept of ...

Since the first planet beyond our solar system was confirmed in the 1990s, astronomers have gone on to catalogue more than ...

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

Three confirmed interstellar objects have entered the Solar System in just eight years, including one that crossed the Sun at ...

It’s easy to see Jupiter as you travel past Westfield in Aroostook County, but you might not notice the newest installation at the small park that contains the biggest planet in the Maine Solar System ...

August 2026 will give the inhabitants of the Earth the opportunity to see a rare large parade of planets — a phenomenon that gathers several planets at once in one area of the sky. Some of them will ...

The object about 72 light-years away from Earth could be the first satellite discovered outside our solar system.

Scientists have discovered a unique planetary system located 71 light-years away, featuring a red dwarf star orbited by a ...

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 ...