The night sky is positively teeming with wonders, from star clusters and nebulae to quasars. Astronomy is the means by which these and other similar phenomena are discovered and observed. This stellar resource traces the path of modern astronomy, from initial efforts to map the heavens to today’s use of high-tech telescopic devices that help people delve deeper into celestial discovery.
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格式 PDF ● 网页 215 ● ISBN 9781615300549 ● 编辑 Erik Gregersen ● 出版者 Britannica Educational Publishing ● 发布时间 2009 ● 下载 6 时 ● 货币 EUR ● ID 2411207 ● 复制保护 Adobe DRM
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