Universe

Given that it includes literally everything in existence, it's not surprising that the Universe is the source of some of the greatest mysteries in physics. How big is it? How did it begin? And, perhaps more worryingly, how will it end? Through cosmology, the study of the evolution and structure of the Universe, experts have been attempting to untangle these tricky topics for centuries. Explore the secrets of the cosmos with astronomer Dr Greg Brown as he entertains our fascination with impossible questions in this pocket guide to everything that ever was and ever will be.