From Alien to The Thing, these are the ten most perfect science fiction horror movies of all time.

Quite a bit of movie magic made "Alien" the sci-fi horror classic it is -- but one of its biggest challenges was solved with a simple low-tech tactic.

The first Facehugger design for "Alien" was initially much larger and more grotesque. Thankfully H. R. Giger scaled it down ...

Ridley Scott's iconic sci-fi horror movie "Alien" was released in the United States on May 25, 1979, meaning it turns 47 this year.