Science fiction has a complicated history in musical theatre. Much like the Academy Awards, which usually reward stories about “real people” over sci-fi and fantasy (with 2017's Best Oscar win for The Shape of Water being a notable exception), musical theatre audiences tend to scoff at spacey sagas. However, some sci-fi musicals have managed to break through the snobbery and make a lasting impact. Some are brilliant, like The Rocky Horror Show. Others are about Thomas the Tank Engine in space. It’s a mixed bag.