A newly discovered comet, 3I/ATLAS, may be the most ancient visitor ever detected, potentially older than our solar system itself. Unlike previous interstellar objects, this ice-rich comet seems to ...

However, new research has shown this potentially "water ice-rich" visitor could be even more extraordinary than initially ...

I/ATLAS might be over 7 billion years old, a new study reports, which would make it the oldest comet known. But experts caution we need more data.

When the news started to spread on July 1, 2025, about a new object that was spotted from outside our solar system, only the ...

Researchers at Oxford have discovered that comet 3I/ATLAS may be over 7 billion years old, making it the oldest one we've ...

Astronomers have been given the rare opportunity to study an extrasolar object after the recent discovery of the interstellar comet 3I/ATLAS. Experts tell Live Science how they are planning to observe ...