Add Yahoo as a preferred source to see more of our stories on Google. Termed “radical mundanity”, a new paper takes a look at explanations for why there is a lack of evidence of technology-using ...

It starts with a signal. Faint, strange, and unlike anything humanity has ever recorded. Within hours, it escalates into an event that changes the course of history as an alien arrival on Earth ...

Is intelligent alien life really out there? With powerful telescopes identifying more potentially habitable planets each year, the possibility continues to grow. But what would happen if we actually ...

Obama walked back comments made on a podcast in which he appeared to claim that aliens are real.