How did the universe begin? Which Planet is like a boiling cauldron? Why does the tail of a comet trail through space? How do the planets stay in orbit around the sun? How is a star born from clouds of gas and dust? Stars and Planets is part of Discoveries, a dynamic new reference series for children. Atmospheric illustrations, strong photographs and lively text engage and encourage readers to discover for themselves the world around them. Titles from Natural History, Our World, Science and Technology and Our Past cover an exciting span of subjects: from the colour and splendour of Ancient Egypt to the intriguing world of Mammals. A four-page foldout in each title reveals a dramatic, and perhaps unexpected, perspective.