Strange interstellar comet speculated to be alien spacecraft is older than Solar System - Scientists say comet represents preserved fragment of ancient planetary system ...

PARIS, France — An interstellar comet that blazed past the Sun last year could be nearly three times older than our Solar System and is unlike anything ever before seen in our cosmic backyard, ...

Billions of years ago, while the solar system was still young, a massive object may have drifted into it. It's not a spaceship, but it is an alien visitor in its own right—a colossal interstellar body ...

The giant asteroid made waves across the world last year when it came whizzing past Earth - with some experts convinced it ...

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

Researchers at the SETI Institute found no evidence of alien technology after analyzing radio signals from the object. 3I/ATLAS was the third comet ever discovered originating from outside our solar ...

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 ...

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