Why does science fiction have so many heroes and villains? Why are some heroes so much cooler than others, and why can't villains be ruthless and competent? Here's our introductory guide to the eternal struggle of good versus evil.
So you may have noticed that a lot of our favorite science fiction TV shows and movies feature a clear-cut hero and a villain. And the same is true for a lot of the really essential books, too. There may be shades of gray, there may be complicated people in the mix, but usually there's a character we root for, and a character (or entity) we root against.