Given 3I/ATLAS' highly eccentric orbit, this will be its one and only visit to our solar system, as its trajectory does not ...

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

A team of international astronomers, including a University of Michigan doctoral student, were the first to publish the ...

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

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

Dubbed 3I/ATLAS, it is blazing through our cosmic cul-de-sac at truly awe-inspiring speeds between the main asteroid belt and ...

An object dubbed 3I/ATLAS is only the third interloper from outside the Solar System seen in all of human history.

New findings about interstellar comet 3I/ATLAS reveal its surprising size, possible thick disk origin, and what makes it ...

Most comets, including the well-known Halley's, loop through our solar system like cosmic time capsules that formed alongside ...

An object from another star has been seen entering the solar system at high speed, and is expected to whip around the sun in ...

For only the third time in recorded history, an interstellar object has crossed into our solar system, creating quite the ...

A rare interstellar comet is flying through our solar system. Here's how—and when—you might be able to see Comet ATLAS from ...