Exactly where the comet 3I/ATLAS came from within the Milky Way remains a mystery.

The "interstellar object" which passed close to the Sun last year may be nearly three times older than our solar system, ...

Based on the composition of gases spewed by the icy space rock, researchers estimate that our guest might be up to 12 billion ...

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

NASA's James Webb Space Telescope is finding clues that are leading scientists toward the origins of the interstellar comet ...

Astronomers first spotted Comet 3I/ATLAS in June 2025, and it was later confirmed as an interstellar visitor that originated ...

One year ago, on July 1 2025, astronomers discovered a fascinating new object moving through the Solar System. Detected by ...

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

Harvard astrophysicist Avi Loeb suggests 3I/ATLAS may carry extraterrestrial life, sparking debate on panspermia; evidence ...

When the solar system's first-known interstellar visitor was spotted on October 19, 2017, scientists scurried to observe the strange object. The oddly shaped, rapidly moving traveler had been ejected ...

Juice observed 3I/ATLAS during perihelion, when Earth-based telescopes could not. Spectroscopic observations measured water ...

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