What does science really tell us about the nature of the universe, its origin and future? If there is any order to the world, is what quantum physics and the theory of relativity tell us compatible with the teachings of Buddhism? And what conclusions can we draw from this regarding our own life? By drawing on his experience, the famous astrophysicist Trinh Xuan Thuan here answers these and many other captivating questions. From the outset his journey places him at the intersection of three cultures: from an intellectual Vietnamese family which had adopted Buddhist and Confucian traditions, he received a French education and then an American scientific training. Such a wealth of points of view enables him to offer points of reflection that are accessible to all, which for a century have introduced us to the great adventure of astrophysics. Each page offers us essential elements on baby galaxies, black mass, Foucault’s pendulum or the future of the universe, all the while presenting the development of theories which are now points of reference.