TV has taught us many important lessons about aliens.They are either here to observe us, replace us, eat our cats, or gently judge our emotional intelligence while wearing a bathrobe. Sometimes all ...

Aliens have been one of the most enduring elements of science fiction. Sometimes they’re terrifying, sometimes they’re wise, and sometimes, they’re just as confused and neurotic as us with humans.

'Alien: Earth' premiered its first two episodes on Aug. 12 Caroline Blair is a writer for PEOPLE. She has been writing about celebrities, entertainment, reality TV stars and news for five years. Alamy ...