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The following outline is provided as an overview of and topical guide to astronomy: Astronomy – studies the universe beyond Earth, including its formation and development, and the evolution, physics, chemistry, meteorology, and motion of celestial objects (such as galaxies, planets, etc.) and phenomena that originate outside the atmosphere of Earth (such as the cosmic background radiation). ==Nature of astronomy== Astronomy can be described as all the following: * An academic discipline: one with academic departments, curricula and degrees; national and international societies; and specialized journals. * A scientific field (a branch of science) – widely-recognized category of specialized expertise within science, and typically embodies its own terminology and nomenclature. Such a field will usually be represented by one or more scientific journals, where peer reviewed research is published. * * A natural science – one that seeks to elucidate the rules that govern the natural world using empirical and scientific methods. * * * A branch or field of space science 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Outline of astronomy」の詳細全文を読む スポンサード リンク
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