the matter occurring between the stars of our Galaxy, largely in the spiral arms, and consisting mainly of huge clouds of ionized, neutral, or molecular hydrogenAbbreviation: ISM
Inter- vs Intra-What’s the difference between the interstate highway and the intrastate highway? Inter- is a prefix that means between two groups, and intra- is a prefix which means within or inside one group. Inter- and intra- are both prefixes, which are groups of letters that are placed at the beginning of a word in order to change its meaning. Inter- Inter- is a common prefix that …
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Science definitions for interstellar medium
[ ĭn′tər-stĕl′ər ]
Material, mostly hydrogen gas, other gases, and dust, occupying the space between the stars and providing the raw material for the formation of new stars. Nebulae are the most distinct areas of the interstellar medium; they appear when the clouds of gas and dust cluster due to interaction with nearby stars or star remnants.
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