Think about the Earth as a ball with definitive boundaries. You know when it ends because you can feel its circle. The Earth is somewhat similar but since you can't physically feel the boundaries scientists did the work for you. In this book you will learn where outer space begins. The facts descriptions and pictures should make information easily understood. Read this book today!
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Hinweis: Dieser Artikel kann nur an eine deutsche Lieferadresse ausgeliefert werden.