The ultimate guided tour of our universe From the fiery mass of the Sun's core to the black hole at the centre of the Milky Way, take off into the farthest limits of space and discover our universe. Explore the latest discoveries in astronomy, spectacular star charts and stunning images from space probes and telescopes. A dazzling visual exploration of all the astonishing features and phenomena of space. Out-of-this-world reference for all the family. Now available in ebook(PDF) format.