Have you ever wondered how big the universe is? Do you want to learn what a light year is? This book will teach you everything you need to know!

- It will answer some of the biggest questions ever asked and reveal the facts behind the most exciting mysteries of the universe.

- It will provide you with the data, numbers, and terminology you need to speak like a scientist.

- It will inspire you with photos, illustrations, sketches, and stories about the true heroes of the universe.

Each book includes 150-200 color images (comic strips, photographs, and diagrams), as well as a glossary and index. The series is based on the original English editions from Oxford University Press and is an extension of the successful adult series of the same name (which now has over 700 titles and has been translated into 51 languages).