An interstellar comet that originated outside our solar system just made its closest pass of the sun, setting it on an outgoing path — but it’s not leaving our cosmic neighborhood yet. The comet, ...

An interstellar comet first spotted passing through our solar system in July is beginning its departure from our corner of the universe — but first it will fly by Earth, and scientists are capturing ...

Comet 3I/ATLAS is an interstellar object first discovered in July. An interstellar object, literally, is a body that wanders through interstellar space between stars and happens to pass through ...

Detected speeding through space at nearly twice the velocity of earlier interstellar guests like ‘Oumuamua and Comet Borisov, 3I/ATLAS immediately caught the attention of astronomers. Not only is it ...