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

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

Just as mysterious interstellar object 3I/ATLAS reemerged from behind the Sun last week, astronomers detected intriguing radio signals from it that give new clues about its chemical composition.

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James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

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

A Harvard scientist has suggested that our Solar System may be far more crowded with interstellar objects, chunks of rock or ice from other star systems, than anyone realized. Avi Loeb, who made ...

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

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

The solar system is now at the edge of this cloud, but the massive stockpile of cosmic stardust has left signatures on Earth's southernmost region. The JUICE mission snapped photos of Comet 3I/Atlas ...