15 Best Sci-Fi TV Shows Of The 21st Century

15. Firefly

Coming from Buffy the Vampire Slayer creator and future Marvel hero Joss Whedon, the short-lived Firefly is mostly known for ruthlessly killing off its cast and earning a fandom as intense as Rick and Morty’s and as persistent as DC defenders.

But before it was best known as a movement to bring back Firefly, the show itself was an inventive and often dark, funny space opera which more than earns a spot on any self-respecting sci-fi fan’s best of list.

With a loveable cast and a clever, mature approach to its familiar genre, this space exploration series skewed away from Star Trek’s utopia and took tv’s depictions of interstellar travel into edgier, more morally ambiguous territory for good.