Of all the sci-fi subgenres that exist, one of the most versatile is aliens. The idea that we are not alone in the universe offers countless story opportunities, and it's fascinating how the best ...

These shows arguably pushed the genre further, aged more gracefully, or told tighter, more cohesive stories than 'The X-Files'.

Like the truth, lots of engaging, quirky, mythology-heavy sci-fi series are out there. If you were any kind of hip TV watcher in the '1990s, you were tuning into Fox's "The X-Files." Marginalized FBI ...