Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...

The solar system has an uninvited guest that is currently shooting toward us on a one-way trip through our cosmic ...

What at first seemed a routine detection of an object travelling through the solar system soon turned out to be anything but.

I/ATLAS might be over 7 billion years old, a new study reports, which would make it the oldest comet known. But experts caution we need more data.

Scientists have been studying an interstellar object that's currently moving through our solar system which was first spotted on 1 July. It has been called 3I/ATLAS because of what spotted it, and ...

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

A new interstellar object, A11pl3Z, has been discovered in our solar system, marking the third such object to be observed. It ...

Astronomers have confirmed the third interstellar object on record is dashing through our solar system. Dubbed 3I/ATLAS, it ...

Captured just days after its discovery, the images offer the clearest view yet of this rare visitor from beyond our solar system.

Astronomers are scrambling to gather data on a mysterious object that’s currently hurtling through the solar system.