Astronomers are closing in on one of the most tantalizing possibilities in planetary science, evidence that a previously ...

In the distant space out beyond the orbit of Jupiter lurks a strange object. Its name is Chiron, a type of outer Solar System body known as a centaur. But even among its fellow centaurs, Chiron is ...

You might think we know the solar system pretty well, but there's a lot more to our cosmic neighborhood than initially meets the eye (or telescope). Most of the good stuff, such as the planets, moons ...

Astronomers have found that a weird space rock at the edge of the solar system is locked in a rhythmic dance with Neptune. The object, designated 2020 VN40, is part of a family of distant solar system ...

Object 3I/ATLAS is now too far from Earth to aim a telescope at, but prior observations showed some unusual behavior. The anomalous nature of the object led astrophysicist Avi Loeb to apply a thought ...

A large asteroid-comet hybrid that orbits between Neptune and Jupiter is an intriguing oddball as far as cosmic rocks go. Chiron, as the strange centaur is called, is what astronomers call a minor ...

Meet the surprising, oddball worlds moving around our solar system. From meteorites that impact Earth, to a moon that orbits backwards, to an imposter lurking in the asteroid belt, a variety of ...

Astronomers observing the visiting comet have detected shifting jet structures inside an unusual anti-tail, offering fresh ...

Two nearly-identically sized worlds — Eris and Pluto — float distantly in the same frozen region of our outer solar system. A NASA spacecraft has visited Pluto, but not Eris, and each is so distant ...