With his new movie, Disclosure Day, Steven Spielberg wonders how humankind would react to undeniable proof of the existence of extraterrestrials. It's a subject that pop culture has been fascinated ...

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.

Humanity's ideas about alien existence often say more about us than the little green men we envision. Our conception of life beyond Earth reflects our collective hopes and fears about technology and ...