noun
cosmochemistry
Scientific field studying the chemical composition of matter in the universe and the processes that led to those compositions.
宇宙化学は、隕石や星間物質の分析を通じて宇宙の歴史を探る学問だ。
Cosmochemistry is a discipline that explores the history of the universe through the analysis of meteorites and interstellar matter.
Compound of 宇宙 (uchū, 'universe') and 化学 (kagaku, 'chemistry').