In recent years, extraordinary advances in our understanding of the wider Universe have led us to uncover even greater mysteries: what, for example, are the mysterious 'dark' parts of the Universe? And, what happens in those parts of space where conditions are so intense that our laws of physics break down?

In this new Pelican book, practising cosmologist and Professor of Astrophysics Jo Dunkley takes us to the heart of these many unsolved questions, guiding us through the history and structure of the universe, and illuminating many unsung heroes of discovery along the way.