The third known visitor from another star system, 3I/ATLAS, has already delivered on one of the biggest promises in modern astronomy: a chance to treat an interstellar object as a potential alien ...

Add Yahoo as a preferred source to see more of our stories on Google. Those hoping an infamous interstellar object that visited our cosmic neighborhood in 2025 was an extraterrestrial attempt to ...

An interstellar comet known as 3I/ATLAS, which swept past the Sun in 2024, could be a 12‑billion‑year‑old relic from deep space and has even been described by a Harvard physicist as a possible alien ...

In July 2025, astronomers spotted a mysterious object screaming through the solar system from interstellar space. The object, later dubbed 3I/ATLAS, has been a fertile area of investigation for ...