A newly spotted interstellar visitor just got an unusually close listen from California scientists — in a search for signs of ...

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...

Strange interstellar comet speculated to be alien spacecraft is older than Solar System - Scientists say comet represents ...

Astronomers studying the interstellar comet 3I/ATLAS say it could be a 12‑billion‑year‑old relic formed in near‑absolute‑zero ...

Is alien life really out there? For decades, humanity has looked at the night sky and asked the same question. Now, according ...

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

Iran's president is in Pakistan to talk with mediators as negotiations between Tehran and Washington proceed on ending the ...

As much as Steven Spielberg likes aliens, he seems to prefer holding them at arm’s length. The creatures in Close Encounters ...

An instrument on the Perseverance rover has identified large, complex carbon compounds alongside unusual patterns on the ...

NASA is racing to save its Swift telescope from falling back to Earth with a daring rescue mission. The salvage effort gets ...

A team of historians, scientists and engineers has developed a portable X-ray scanner to study 4,000-year-old letters encased ...