>> Pop culture is certainly full of films and novels and TV series that gleefully break this rule, but some of the best aliens are the ones we only catch glimps

>> Pop culture is certainly full of films and novels and TV series that gleefully break this rule, but some of the best aliens are the ones we only catch glimpses of, who exist only partially, only in darkness, only in fleeting, frightening peeks. And then there's the Alien xenomorph, whom we do get to see. Oh yes, sir-ee.