Data from the James Webb Space Telescope on exoplanet K2-18b has revealed the "strongest hints yet of biological activity ...

SETI researchers found no alien signals on interstellar object 3I/ATLAS, but the study refines future searches and expands ...

Astronomers suggest that space weather could distort alien signals, making them undetectable. This challenges traditional ...

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

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

An interstellar comet that blazed past the sun last year could be nearly three times older than our solar system and is ...

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

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

A new exoplanet model screens rocky worlds by their ability to retain atmospheres over geologic timescales, helping narrow ...

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

Scientists propose building a lab on the moon to screen Mars and other space samples for alien microbes before they ever ...