Add Yahoo as a preferred source to see more of our stories on Google. Happy Alien Day! And no, not for any supposed extraterrestrial beings watching from the shadows of our solar system, but for the ...

There’s no data to suggest that aliens exist. However, if we believed they existed and came to Earth, our planet would offer them a somewhat risky buffet. There is liquid water, as well as salts, ...

With the release of Disclosure Day, Steven Spielberg’s new film about aliens, a question as old as science fiction itself resurfaces: if aliens were to arrive on Earth, would they come to conquer us, ...