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?

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

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

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

"If the object is an alien spacecraft slowing down, and the anti-tail is braking thrust, then this change from anti-tail to ...

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

Fans, skeptics, and amateur astronomers alike are weighing in, creating a digital echo chamber of fascination and frenzy.

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