Astronomers have uncovered a massive new trans-Neptunian object, 2017 OF201, lurking at the edge of our solar system. With an ...

Astronomers simply can't shake the feeling that there's something really off about interstellar object 3I/ATLAS. The ...

Astronomers have discovered a large trans-Neptunian object, 2017 OF201, at the edge of the solar system. Its strange orbit challenges the Planet Nine theory and shows the space beyond Neptune is not ...

The recently discovered interstellar object 3I/Atlas is set for a close flyby of Mars in October, where it can be observed by ...

Object 3I/ATLAS is now too far from Earth to aim a telescope at, but prior observations showed some unusual behavior. The ...

A new trans-Neptunian object, 2017 OF201, has been found with a vast orbit and potential dwarf planet size. The finding hints ...

Astronomers have discovered a "fossil" body residing on the outskirts of the solar system, according to new research. The object – which goes by the formal designation 2023 KQ14 but is nicknamed ...

The third interstellar object ever observed is in our neighborhood—for now. And, asteroid Bennu could contain dust from ...

We already knew that interstellar comet 3I/ATLAS was different from the other two interstellar objects known to have ...

Astronomers using the Subaru Telescope have discovered a strange new body in a weird orbit at the edge of the solar system, which could be bad news for Planet Nine theories.

Image reveals unprecedented view of the third interstellar object observed passing through our solar system Big questions about 3I/ATLAS remain, some of which may be impossible to answer ...

By Ashley Strickland, CNN (CNN) — A new image has revealed the clearest glimpse yet of an interstellar visitor zipping through our solar system. The Hubble Telescope and its Wide Field Camera 3 ...