Is 3I/Atlas an alien spacecraft or just a really interesting rock hurling through the cosmos? That debate has been raging ...

An interstellar trespasser known as 3I/ATLAS is almost certainly a comet. So, why do so many people think it's ...

Interstellar comet 3I/ATLAS is losing an insane amount of mass after making its closest pass of the sun last month — a ...

Leaked images hint at a dusty spacecraft; Avi Loeb fuels speculation, but NASA dismisses alien claims. Comet's brightening, ...

Comet 3I/ATLAS, a 7-billion-year-old visitor from another star system, is stirring alien rumors. Scientists explain why the ...

See NASA's released images of interstellar comet 3I/ATLAS. Get insights from Hubble, Webb, and Lucy on this visitor from ...

Comet 3I/ATLAS was discovered on July 1 by the NASA-funded Asteroid Terrestrial-impact Last Alert System (ATLAS) observatory.

Recent photos reveal that 3I/ATLAS did not disintegrate during its recent fly-by of the sun, leading Harvard scientist Loeb ...

Is the viral 3I/Atlas leaked photo real or fake? A clear fact check on its origin, what NASA data show, why basic optics say no, and how social media fueled the debate.

The interstellar object 3I/ATLAS has become the subject of online speculation, with a fabricated image suggesting it is an ...