The interstellar medium is the gas and dust that fill the space between the stars of a galaxy. Interstellar dust is the part of it in solid grains, from a few nanometres to about a micrometre across, made of silicates, carbon compounds and, in cold regions, ices.
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Earth and Space Sciences · 术语表
什么是 Interstellar medium, interstellar dust?
又称: interstellar medium · interstellar dust