Illuminating the deepest insights discovered by modern physics, quantum physicist, New York Times bestselling author and BBC presenter Jim Al-Khalili challenges us all to understand what this extremely important science tells us about the universe and the nature of reality itself. Al-Khalili begins by introducing the fundamental concepts of space, time, energy, and matter, and then describes the three pillars of modern physics—quantum theory, relativity, and thermodynamics—demonstrating how all three must come together,