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20 December, 22:11

What do we mean by the interstellar medium?

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  1. 21 December, 00:55
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    The interstellar medium is the content of matter and energy that exists between stars within a galaxy.

    In this sense, two components can be distinguished in the interstellar medium: dust particles and gas.

    Dust represents 1% of the interstellar medium in mass, while the gas (consisting mainly of hydrogen and helium) represents 99% of the mass of the interstellar medium.

    It should be noted that the interstellar matter is not uniformly distributed but is concentrated in molecular clouds.
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