Astronomers studying the interstellar object known as 3I/ATLAS say new observations from the Gemini North Telescope in Hawaii ...

The mysterious interstellar comet 3I/ATLAS is making its closest approach to Earth on Friday, offering scientists a rare ...

A Harvard University astrophysicist has sparked a furious debate by warning he cannot rule out that extraterrestrials are ...

Interstellar Comet 3I/ATLAS makes its closest Earth pass early on Dec. 19. Here's what astronomers know about its origin and speed.

Today is one astronomers, stargazers and alien conspiracy theorists have been waiting for: interstellar comet 3I/ATLAS is as ...

The mystifying 3I/ATLAS interstellar comet is blazing toward Earth and will soon come as close to our planet as it ever will.

NASA has captured detailed observations of interstellar object 3I/ATLAS, a visitor from beyond our Solar System that has sparked both excitement and speculation. Discovered on 1 July 2025 by the ATLAS ...

Astronomers are preparing for a rare observational opportunity as interstellar comet 3I/ATLAS approaches its closest point to ...

Green-glowing interstellar comet 3I/ATLAS, heading for its December 19 flyby, is spewing key organic 'ingredients for life' ...

A Harvard astronomer is making waves by suggesting that a massive interstellar object hurtling through our solar system might be an alien spacecraft. Professor Avi Loeb, who also serves as director of ...

I do so love an ostentatious comet. As I wrote in a recent “The Universe” column, when these dusty ice balls are billions of kilometers from the sun, they’re frozen solid. But as they near our star on ...