Add Yahoo as a preferred source to see more of our stories on Google. But the literal meaning of “extraterrestrial” is simply “from outside Earth”. In that broad sense, the only extraterrestrials ...

In the 1982 blockbuster, E.T. the Extra–Terrestrial, E.T. is lured out of hiding using a trail of Reese's Pieces. But what would aliens really eat if they visited our planet? According to Professor ...

A nutrition scientist applies metabolism, biology and food science to one of science fiction's oldest questions.

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, ...