Whether science fiction is exploring current realities, extrapolating from the present to create imaginary futures, or just creating interesting settings for character-driven stories, it often relies on real science to both entertain and build stories that can transport people into astonishing new worlds. In the 24 lectures, Professor Charles L. Adler of St. Mary?s College of Maryland looks at dozens of books, movies, and television shows to unearth the science behind the fiction.