Astronomers have searched the skies for signs of extraterrestrial technology for decades. These searchers since 1960 have ...

Trump accused Obama of revealing classified information about aliens, calling it a "big mistake" during Air Force One ...

Human intelligence wasn’t a cosmic evolutionary fluke, some scientists say. The case against cosmic loneliness is growing.

The odds are that life is out there – but rather than little green men, it may look more like hydrothermal vent tubeworms ...