In July 2025, astronomers spotted something remarkable passing through our Solar System, an object that had not come from ...

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...

One year ago, on July 1, 2025, astronomers discovered a fascinating new object moving through the solar system. Detected by the Asteroid Terrestrial-impact Last Alert System (ATLAS), the object was ...

Strange interstellar comet speculated to be alien spacecraft is older than Solar System - Scientists say comet represents ...

An interstellar comet that blazed past the sun last year could be nearly three times older than our solar system and is ...

SETI scientists searched the interstellar object 3I/ATLAS for radio signals that could indicate extraterrestrial technology ...

I/ATLAS arrived fast, bright, and strange. When astronomers spotted it on July 1, 2025, they knew almost immediately this was ...

Scientists reveal comet 3I/ATLAS is up to 12 billion years old, offering insights into ancient planetary systems and cosmic ...

"Eventually, our own Voyager spacecraft will be extraterrestrial artifacts in other stellar systems." ...

The best way to find alien technosignatures is to look for ones that have long survived their creators, according to a new paper.

PARIS, France — An interstellar comet that blazed past the Sun last year could be nearly three times older than our Solar ...

Scientists have identified interstellar comet 3I/ATLAS as the oldest known object to pass through the solar system, dating ...