From time immemorial, poets and philosophers have looked in awe and wonder at the Universe. Such awe is shared by astrophysicists, too as they seek to understand its nature, and whether it has any limits. In he Infinite Cosmos, Joseph Silk, Savillian Professor of Astronomy at Oxford University, cosmologist and well-known science writer, brings together the modern understanding of the Universe, its structure, its evolution, and its possible fate, combining the latest from theory and observation. The narrative is peppered with quotations from literature and philosophy, and reflects too on the process of scientific discovery and the implications of our discoveries.