Universal brings back together the bestselling authors of The Quantum Universe to show that, by asking questions about the world around us, everyone can think like a physicist and grasp the grandeur of our cosmos. Physics is about asking questions. But what are good questions? How do we understand the fundamental forces of the Universe and its remarkable uniformity? From what fridges tell us about the direction of events unfolding, to how magnets reveal spacetime, and how we know the age of things from the Atlantic Ocean, to the Earth, the Sun and the galaxies, Universal is the story of simple questions with sublime answers.