Add Yahoo as a preferred source to see more of our stories on Google. For decades, humanity has scoured the cosmos for any signs that we aren't alone in the universe. But now, researchers at the SETI ...

Add Yahoo as a preferred source to see more of our stories on Google. Former U.S. President Barack Obama said he did not see evidence that aliens “have made contact with us,” after sending social ...

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 ...