Travel back in time with Doctor Who, the Terminator, the X-Men, and all your favorite time travelers!Science fiction is the perfect window into the possibilities and perils of time travel. What would happen if you went back in time and killed your own grandparent? If you knew how to stop a presidential assassination, would time travel allow you to make your wish come true? Can we use time travel as a tool to escape the destiny of our future or mistakes of the past?The Science of Time Travelexplores time travel through your favorite science-fiction franchises, from the classic time travel paradoxes ofStar Trekto the universe-crossing shenanigans ofDoctor Who. Discover the real science behind questions such as:Can time travel really erase our past regrets like inA Christmas Carol?Is it worth killing people in the past to prevent a horrible future like inTerminator?What can we learn from living...