Beyond Star Trek: Physics from Alien Invasions to the End of Time is the fourth non-fiction book by the American theoretical physicist Lawrence M. Krauss. The book was initially published on November 7, 1997 by Basic Books and since then has appeared in five foreign editions. In his previous work, The Physics of Star Trek, Lawrence Krauss explained a number of ideas and concepts featured in the series; they may or may not exist in our universe. In this book, Krauss goes farther to discuss the realities of physics when it is applied to components from other sci-fi story lines.