Though this hunt came up empty, the fact that 3I/ATLAS is only the third known object found in the solar system after ...

ISO: A home for a stray space rock. Astronomers are tracking the motions of stars to figure out which one sent an alien asteroid speeding past Earth in October — but they may never find the rock’s ...

An ‘interstellar visitor’ spotted drifting into our solar system weeks ago is either a massive dirty snowball or an alien probe. At least, this is according to a leading UFOlogist and a Harvard ...

A strange interstellar object is hurtling its way toward our pale blue dot — and according to a Harvard astronomer, there’s a chance it’s not a benign asteroid or comet, but instead some harmful form ...