The big screen has played host to many epic alien invasions, but so have our TVs, and here's the five best alien invasions ...

Science fiction often takes audiences across the galaxy, seeing unknown worlds and creatures. It's typically a way to escape from reality and see something amazing — until the extraterrestrials invade ...

Alien invasion stories have been around for decades, and some of sci-fi's most interesting entries are often overlooked or completely forgotten today.