The newly found object, estimated to be roughly as massive as Jupiter, orbits a brown dwarf—a "failed star"—which in turn ...

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

Looking for a sky event this week? Check out our full Sky This Week column. July 23: Mercury's retrograde path ends The Moon ...

The unintended event also creates an opportunity for scientists and skywatchers to witness lunar impact dynamics in real time ...

The object orbits a brown dwarf that orbits a star, and astronomers aren’t sure if it’s a planet, a moon — or something else ...

NASA is preparing for future astronaut landings on the Moon with an unusually ambitious orbital rehearsal. During Artemis III ...

NASA has long eyed the moon's south pole for its first crewed Artemis landing. But Artemis II astronaut Victor Glover says ...

Ancient samples from the moon's far side are helping scientists uncover how asteroid impacts shaped the early solar system.