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, ...

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

Add Yahoo as a preferred source to see more of our stories on Google. An interstellar comet that blazed past the sun and swung by Earth last year could be nearly three times older than our solar ...

(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 ...

Harvard astrophysicist Avi Loeb, known for his controversial extraterrestrial theories, is now leading a new Trump administration panel on unidentified aerial phenomena (UAP). His team is reviewing ...

In July 2025, astronomers detected 3I/ATLAS, a rare interstellar comet, prompting SETI researchers to scan it for alien signals using advanced radio telescopes.

Avi Loeb, a Harvard astronomer who has made headlines with his theories about alien encounters, will lead a White House ...

JWST detected rising methane emissions from interstellar comet 3I/ATLAS, exposing ancient interior ice and offering new ...

Astronomers studying the interstellar comet 3I/ATLAS say it could be a 12‑billion‑year‑old relic formed in near‑absolute‑zero conditions, while Nasa dismisses claims it is an alien probe.