Barnard’s Star hosts four hostile small planets whose unusual chemistry and orbital rhythm reveal how compact planetary systems can form and survive.

For ages, astronomers have categorized the skies into tidy buckets: stars, planets, and moons. However, a new object 71 light years from us could completely disrupt that thinking.

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 ...

Our solar system is home to a whopping 891 moons, but the rest of the known cosmos? Nothing. Until now.  As a new paper in ...

Astronomers discovered a moon-like object orbiting a brown dwarf that's orbiting a star. Say that three times fast.

In a novel three-tiered hierarchical system, the star CD-35 2722 is orbited by a brown dwarf that, in turn, is orbited by a ...

Much to the dismay of many professional and amateur astronomers, the 1978 discovery of Pluto’s largest moon Charon ultimately ...

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

The Nancy Grace Roman Space Telescope will be the first space telescope to use an “active coronagraph” to block out unwanted ...

Two giant planets lighter than cotton candy are giving astronomers a rare new window into the origins of some of the galaxy's ...