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宇宙化学是研究太阳系核素的形成,元素和同位素(核素)的组成、分布以及化学演化的科学。它是在研究地球、陨石、月球、太阳和恒星的化学组成和化学演化的基础上逐步发展起来的,是天体史研究中的一个重要组成部分。它的研究范围涉及太阳系核素的起源,太阳系历史中的天然核反应,太阳系的化学演化,太阳系中有机化合物的形成和前生期的化学演化,以及自然界新元
Cosmic chemistry is a science that studies the formation of the radionuclides in the solar system, the composition and distribution of elements and isotopes (nuclides), and chemical evolution. It is developed on the basis of studying the chemical composition and chemical evolution of the Earth, meteorites, the moon, the sun and stars, and is an important part of the study of celestial history. Its research interests include the origin of the solar system nuclides, natural nuclear reactions in the history of the solar system, the chemical evolution of the solar system, the formation of organic compounds in the solar system and the chemical evolution of the precursors,