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

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

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

Harvard astrophysicist Avi Loeb has floated the provocative idea that humans might themselves be alien‑made 'autonomous probes,' built through advanced synthetic biology rather than evolving entirely ...

There is no chance in hell our species will be able to reach another Earth-like planet in the Universe in the foreseeable future, so the only way we can get a sense of the habitability of such places ...

Scientists say extraterrestrial life may exist elsewhere in the universe, but vast distances, enormous energy requirements ...

Moon dust may be hiding signs of pulverised alien technology, scientist says - Grain-sized remnants of alien technology may ...

The United States government’s recent release of hundreds of previously classified Unidentified Anomalous Phenomena (UAPs) ...

A leading astrobiologist argues that advanced aliens may well exist but are likely giving Earth a miss, thanks to vast ...