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

Brad LaCour is a Senior List Writer for Collider. Based out of Los Angeles, California, Brad lives close enough to the stars but is too busy to find out where exactly they live. Brad is fairly certain ...

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

Aliens and deep space have both been cornerstones of sci-fi ever since HG Wells first published The War of the Worlds, and some of the best stories are told in TV shows. The genre has been commanding ...