**The renowned theoretical physicist and national bestselling author of *The God Equation* takes readers on an exciting excursion into the discoveries that have led scientists to the brightest new prospect in theoretical physics today: superstring theory. ** What is superstring theory and why is it important? This revolutionary breakthrough may well be the fulfillment of Albert Einstein’s lifelong dream of a Theory of Everything, uniting the laws of physics into a single description explaining all the known forces in the universe. Co-authored by one of the leading pioneers in superstrings, Michio Kaku, the book approaches scientific questions with the excitement of a detective story, offering a fascinating look at the new science that may make the impossible possible.