Our latest known interstellar visitor, comet 3I/ATLAS, is currently making its way out of the solar system, after passing by ...

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

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

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 ...

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

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 ...

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

Hubble Space Telescope image of 3I/ATLAS. (NASA, ESA, David Jewitt/UCLA; Image Processing: Joseph DePasquale/STScI) All signs ...

An interstellar object roughly the size of Manhattan has captured scientists’ attention — and one prominent Harvard astrophysicist believes it could be something far beyond natural. According to the ...