According to science fiction, in the future aliens will be living among us, spaceships will be zipping through the sky, and there will be amazing advancements in technology. Oh, yeah, and let's not forget about the new selection of swear words that we'll all be using to express exactly how we really feel. That's right, in the future our run-of-the-mill selection of swear words will be joined by a whole bunch of new and interesting profanity. Now, while these words may be meaningless here on present-day Earth, they still provide a great opportunity for science fiction fans to let off some steam while still keeping it clean. With 20 science fiction swear words that have been sourced from television, movies, books, and more fans of the genre will delight in adding a touch of color to their favorite profanity from the genre.