When it comes to sci-fi, it's often all about grand space adventures and intergalactic exploration, all of which tends to imply the involvement of alien lifeforms. From Star Wars to Star Trek, and ...

Add Yahoo as a preferred source to see more of our stories on Google. Left to Right: Steven Yeun in "Nope," the alien in Steven Spielberg's "E.T." and Scarlett Johansson in "Under the Skin" (Universal ...