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Which components of a galaxy exist in the space between the stars?

User Max Pinto
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26 votes
The interstellar medium.
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In astronomy, the interstellar medium (ISM) is the matter and radiation that exist in the space between the star systems in a galaxy. This matter includes gas in ionic, atomic, and molecular form, as well as dust and cosmic rays. It fills interstellar space and blends smoothly into the surrounding intergalactic space

User Brianxautumn
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