The interstellar comet 3I/ATLAS is barreling toward its closest point to the sun as perihelion looms on Oct. 29. How different will it look when it reappears on the other side?

Comet 3I/ATLAS is warming up as it approaches the sun, causing a jet to emerge. The jet is visible in a dramatic new image.

Two ESA spacecraft, Hera and Europa Clipper, are poised to fly through the long tail of interstellar comet 3I/ATLAS, a new ...

On 29 October 2025, 3I/ATLAS will reach its closest distance to the sun. Should we worry? Here's what experts say.

New images reveal the stunning reversal of the interstellar objects “anti-tail” and could be indicative of a “maneuvering” ...

Scientists have confirmed that 3I/ATLAS is only the third interstellar object ever detected passing through our Solar System.

The interstellar object hurtling toward the inner solar system, where Earth is located, is much larger than previously ...

Need a refresher about 3I/ATLAS? Here's everything to know about the interstellar object, including when the latest ...

Did CNN report the interstellar comet 3I/ATLAS has contacted Earth, as a viral social media post declared? No, that's not ...

An interstellar object called 3I/ATLAS has captured tremendous attention in the planetary science sphere, and soon it will ...

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