We're just weeks away from this interstellar visitor reaching its brightest in Earth's night skies. Will we see it?

Analyses of its emissions using NASA’s Neil Gehrels Swift Observatory indicate that the interstellar comet probably has a ...

Comets don't visit often — here's how to capture comet Lemmon, comet 3I/ATLAS, on your camera as they dance across our skies.

A mysterious 3I/ATLAS interstellar object has once again baffled scientists with its unusual trajectory in the solar system.

Two spacecraft are on course for 3I/ATLAS, a mysterious interstellar object that some believe could be an alien mothership.

3I/ATLAS is named for its status as one of three interstellar objects ever discovered in our cosmic neighborhood, as well as ...

Water is the universal yardstick of comet science, the baseline for measuring how sunlight drives a comet's activity and ...

Astronomers just caught a rare glimpse of an interstellar comet as it zoomed past Mars. Images of the object, dubbed 3I/ATLAS ...

The first images from Mars of the Manhattan-sized interstellar object 3I/ATLAS have been released as NASA has gone radio ...

"Though our Mars orbiters continue to make impressive contributions to Mars science, it's always extra exciting to see them ...

Our solar system has an interstellar visitor. It’s an object called 3I-Atlas, and is just the third interstellar object to ...

The Earth will soon finally learn the truth about 3I/ATLAS after months of mothership rumors and speculation about advanced ...