The Sun is merely one of some 200 billion stars that make up the Milky Way–and the Milky Way is only one of a billion galaxies in the known universe. Packed with fascinating facts and stunning photography, this book examines the Galaxy humans call home and travels light years away, to the domain of phenomena such as the Oort cloud.
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格式 PDF ● 网页 219 ● ISBN 9781615300532 ● 编辑 Erik Gregersen ● 出版者 Britannica Educational Publishing ● 发布时间 2009 ● 下载 6 时 ● 货币 EUR ● ID 2411206 ● 复制保护 Adobe DRM
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