Aliens are often the cornerstone of many great sci-fi shows. Here are 15 of the best shows that heavily revolve around extraterrestrial beings.

There's nothing in Ridley Scott's 1979 sci-fi horror classic Alien to suggest the beginning of a sprawling intergalactic saga, but the Alien franchise has proven surprisingly consistent and rewarding ...

Aliens and the original Alien share the top spot, while the Predator crossovers and Alien Resurrection sit at the bottom of a full franchise tier list ...

Kelcie Mattson is a Senior Features author at Collider. Based in the Midwest, she also contributes Lists, reviews, and television recaps. A lifelong fan of niche sci-fi, epic fantasy, Gothic horror, ...

Forbes contributors publish independent expert analyses and insights. I write about TV shows, movies, video games, entertainment & culture. First of all, no, Alien: Earth is not a nature documentary.

As the Alien franchise heads into new territory -- both thematically and format..ily -- with the TV series Alien: Earth, we're Weylin' our Yutanis at the seven Xeno-movies that have landed in theaters ...