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 ...

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

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 ...