If and when SETI discovers alien life, a revised Declaration of Principles guarantees once the discovery has been verified, ...

With the release of Disclosure Day, Steven Spielberg’s new film about aliens, a question as old as science fiction itself ...

Grain-sized remnants of alien technology may get caught in solar wind and land on plants and moons close to us ...

"If a signal gets broadened by its own star's environment, it can slip below our detection thresholds, even if it's there." When you purchase through links on our site, we may earn an affiliate ...

Those pesky space aliens are at it again ... or I should say, conspiracy theorists’ hopes, dreams, fantasies and wish fulfillment, along with a ...

Alien probes could already be hiding somewhere in our Solar System – and our current surveys are nowhere near good enough to rule them out, according to a NASA‑linked study presented this month by ...