New evidence suggests that the famous interstellar traveler may be so old that its home system no longer exists.
Interstellar comet 3I/ATLAS stole our hearts in 2025. Discovered on July 1, and only the third known interstellar visitor, it ...
Blasting Most Of Its Water Directly Toward The Sun Juice's SWI instrument revealed that most water vapor was released from ...
Our solar system's famous "invader" might be as old as the Milky Way itself.
Add Yahoo as a preferred source to see more of our stories on Google. Remember 3I/ATLAS? Yes, the interstellar comet that made plenty of headlines in 2025 is still romping through our solar system.
Interstellar comet 3I/ATLAS has steadily been making its exit ever since it had a rendezvous at the end of October with the sun.
The interstellar comet 3I/ATLAS is leaving our solar system. See new photos from a European Space Agency orbiter on its way to Jupiter.
Scientists confirmed that the interstellar comet 3I/ATLAS, which passed closest to Earth in December 2025, showed no detectable technosignatures strong enough to suggest it is an alien spacecraft.
The interstellar comet 3I/ATLAS, recently discovered in our solar system, could be nearly 12 billion years old. Its ...