Table of contents : 1. The unfolding universe. 2. The new physics and the collapse of common sense. 3. Reality and the quantum. 4. Symmetry and beauty. 5. The four forces. 6. The world of subatomic particles. 7. Taming the infinite. 8. The grand trinity. 9. Superforce glimpsed? 10.Do we live in eleven dimensions? 11.Cosmic fossils. 12.What caused the Big bang? 13.The unity of the Universe. 14.A cosmic plan? 15.Further reading.