This comprehensive book presents in-depth information in a way that is engaging and accessible to young readers.

Giles Sparrow, Fellow of the Royal Astronomical Society, studied astronomy at University College, London, and science communication at Imperial College, London. He has authored or contributed to a string of beautiful and successful books for adults and children, including 'Universe', 'Spaceflight' and 'The Way the Universe Works' for Dorling Kindersley, and 'Cosmos', 'Physics in Minutes' and'50 Astronomy Ideas you Need to Know' for Quercus. He is a regular contributor to Focus, How it Works and All About Space magazines.