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

Once small enough, these technograins might gain a trip out of its host solar system by a solar wind that overcomes the ...

Our search for technosignatures—clear signs of advanced civilizations beyond Earth—takes many forms. Many are driven by the famous Drake equation, which attempts to estimate how many technological ...

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

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

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

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

Even at this early stage in our spacefaring age, humanity has already begun sending probes that will eventually reach other ...

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 European-led LIFE mission aims to use spacecraft in formation to look for biosignatures.

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 ...