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?

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

New images reveal the Manhattan-sized interstellar object 3I/ATLAS has developed a tail, hinting at possible alien 'maneuvering', according to a Harvard scientist.

The unusual trajectory of interstellar comet 3I/ATLAS has sparked speculation that it could be an alien spacecraft.

An interstellar object passing through our solar system has sparked intense debate among astronomers after showing what ...

The interstellar comet 3I/ATLAS has captivated astronomers with its unusual behavior, challenging established comet physics.

NASA adds 3I/Atlas to its watchlist as a planetary threat. Discover what makes this comet unusual and concerning.

An astute scientist has claimed the comet could be a mothership for an advanced alien life-form, sent to 'do a recon of Earth ...

I/ATLAS puts the Planetary Defense Network on watch. NASA and ESA say no threat as IAWN drills tracking, while Harvard’s Avi Loeb raises an alien-origin idea.

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 ...