12 billion years old, this interstellar comet is older than our Solar System

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

Interstellar Comet 3I/ATLAS Might Be the Oldest Object Ever Seen in Our Solar System, a Study Suggests

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

A Rare Comet Made History as the Third Known Interstellar Object to Fly Through Our Solar System. Studies Are Now Revealing the Mysterious Conditions in Which I…

In the latest research, telescope observations of 3I/ATLAS examine its chemical structure and suggest that it took shape in a ...

Interstellar comet may be oldest object ever seen in solar system

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

Rare Interstellar Comet 3I/ATLAS Has an Astonishingly Ancient Origin

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

A rare interstellar visitor triggered a SETI search for alien technology

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

The Mysterious Interstellar Object Appears to Be Pulsing in a “Heartbeat Pattern”

Add Futurism (opens in a new tab) More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results. The ...
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Swarm of interstellar objects detected passing within Earth's orbit around the sun

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 ...