(International Gemini Observatory/NOIRLab/NSF/AURA/Shadow the Scientist; Image Processing: J. Miller & M. Rodriguez (International Gemini Observatory/NSF NOIRLab), T.A. Rector (University of Alaska ...

CAPE CANAVERAL, Fla. — The comet that rambled past us from another star last year likely originated in a cold, isolated corner of the galaxy that had yet to gel into its own solar system, astronomers ...

Comet 3I/ATLAS arrived from beyond the Solar System carrying a chemical story unlike anything astronomers had measured before ...

The interstellar comet 3I/ATLAS was born in a distant corner of our Galaxy, in a region that's vastly different from our own Solar System. Scientists studying the comet say its chemistry reveals the ...

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

Now is your chance to see a comet that takes more than five years to return to Earth's cosmic neighborhood. Here's what to ...

What can 3I/ATLAS teach astronomers about the origins of life?

Comets have played an interesting role in the history of astronomy. Since antiquity, many cultures saw them as omens or ...

The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space telescopes and orbiters have been documenting the rare visit. A mysterious ...

PARIS, France — An interstellar comet that blazed past the Sun last year could be nearly three times older than our Solar System and is unlike anything ever before seen in our cosmic backyard, ...

Interstellar comet, 3I/ATLAS, might be one of the oldest celestial bodies ever seen, potentially forming 10 to 12 billion years ago. This ancient visitor, detected in July 2025, could offer ...