New images of the 33-million ton interstellar object confirmed it is releasing a nickel alloy commonly used in the aerospace ...

A mysterious 3I/ATLAS interstellar object has once again baffled scientists with its unusual trajectory in the solar system.

I/ATLAS's chemical composition, upcoming invisibility, and trajectory suggest to experts that it is alien technology, but ...

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

We're just weeks away from this interstellar visitor reaching its brightest in Earth's night skies. Will we see it?

Named 3I/ATLAS and officially designated C/2025 N1 (ATLAS), the sudden appearance of a visitor from another star system ...

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

The interstellar object 3I/ATLAS is allegedly sending signals in a Fibonacci code. Is it an alien message, and is NASA hiding ...

Our solar system has an interstellar visitor. It’s an object called 3I-Atlas, and is just the third interstellar object to ...

3I/ATLAS is named for its status as one of three interstellar objects ever discovered in our cosmic neighborhood, as well as ...

Observing 3I/ATLAS in this active phase will give some of the clearest insights yet into the mystery of interstellar comets.

Two spacecraft are on course for 3I/ATLAS, a mysterious interstellar object that some believe could be an alien mothership.