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

From the Star Wars spin-off The Mandalorian to the classic series Star Trek: The Next Generation, these are the best sci-fi ...

We may receive a commission on purchases made from links. Science fiction often takes audiences across the galaxy, seeing unknown worlds and creatures. It's typically a way to escape from reality and ...

In 1986, ALF crash-landed on Earth and made his home in our hearts.