Add Yahoo as a preferred source to see more of our stories on Google. "If you found out we weren't alone, if someone showed you, proved it to you, would that frighten you?" the official logline reads.

Sagan's team created the greatest puzzle of all time, which you can only solve if your species understands the basic nature of the universe.

Director Steven Spielberg’s most-awaited sci-fi film, Disclosure Day, has finally hit the silver screens. The plot offers a thought-provoking story revolving around government secrets, ...

Did Scientists just detect radio messages from aliens?