Some horror creatures become less frightening when you see the special effects that brought them to life. Not so with the Alien chestburster, which is still pretty damn creepy even during its mechanism test.
Apparently humans aren't the only ones who have something to fear from Alien xenomorphs. deviantART user cerkahegyzo shows us what happens after a pencil has gestated an Alien to its bursting stage.
If there was something missing from Prometheus aside from logic and quasi-competent scientists, it was an alien creature bursting from a human chest. An earlier version of the movie's script involved a particularly bloody encounter with just such a critter. Spoilers ahead.
Over the course of four movies, Ripley goes from Alien survivor to Alien mother. This painting by Jska Priebe casts the action heroine as a saintly Madonna, cradling her Xenomorph baby.
Tired of the same old July 4th barbecue? Consider hosting a science fiction dinner party instead, where you can treat your guests to such cosmic delicacies as Soylent Green, Bachelor Chow, Spice beer, and piping hot xenomorph.