The best way to find alien technosignatures is to look for ones that have long survived their creators, according to a new paper.

Alien civilizations may have left traces. We just may not have been looking in the right place.

Once small enough, these technograins might gain a trip out of its host solar system by a solar wind that overcomes the star's gravity holding it back. These motes of dust are then free to roam the ...

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 ...

SETI scientists searched the interstellar object 3I/ATLAS for radio signals that could indicate extraterrestrial technology ...

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

Snaiad's strange creatures and ecosystems continue to evolve in one of speculative biology's most convincing alien worlds. Russia's military hackers targeted home routers across 23 states. Here's what ...

The United States government’s recent release of hundreds of previously classified Unidentified Anomalous Phenomena (UAPs) cases spanning the 1940s to the present, along with the new Steven Spielberg ...

3I/ATLAS may be departing our solar system, but it’s still very much on Avi Loeb’s mind. In a recent blog post, the Harvard astrophysicist noted that the comet emitted an unusual quantity of methane ...