Add Yahoo as a preferred source to see more of our stories on Google. Scientists have long pondered on one of the universe's greatest mysteries: Are we alone? They have searched the cosmos, but so far ...

Are living beings hiding on distant planets, waiting to be found? That question has captured the minds of scientists and dreamers alike for generations. But as researchers continue the search for ...

The terrifying mimics in "Edge of Tomorrow" are unique in sci-fi, and their memorable design took a lot of drafts and tinkering to perfect. In a parallel universe, the movie would have looked ...