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Posted by on Sunday, December 4, 2011 at 10:48pm.

How does the mass of all the interstellar matter in our galaxy compare with the total mass of its stars?

  • Physical Science - , Monday, December 5, 2011 at 7:57am

    If you include dark matter, which is poorly understood and invisible, and makes up about 90% of the total Milky Way's mass, there is more interstellar matter than stars within our galaxy.

    However, the total mass of interstellar gas and dust is a few percent of the total mass of stars, according to what I can find by searching the web.

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