It's too soon to know whether the object is a rocky asteroid or an icy comet, or how big and what shape it is.

You can watch comet 3I/ATLAS live online tonight (July 3), thanks to the Virtual Telescope Project, which will livestream ...

Astronomers have discovered an interstellar object travelling through the solar system that is expected to pass by Earth ...

Astronomers have announced the discovery of a monumental interstellar object, designated 3I/Atlas, believed to be the largest ...

A mysterious visitor from another solar system could be an alien spacecraft, according to a leading Harvard astronomer.

Astronomers on Wednesday confirmed the discovery of an interstellar object racing through our solar system — only the third ...

An interstellar object has been spotted moving at a speed of 60km/sec in the solar system, only the third such object ever discovered. That doesn't mean there aren't other such bodies that have ...