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dark matter halo

DARK MAT-er HAY-lo

dɑːrk ˈmætər ˈheɪloʊ

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Syllable breakdown

darkmatterhalo

Dictionary meaning

an extended spherical region of dark matter surrounding a galaxy or galaxy cluster; dark matter halos provide the gravitational scaffolding for visible matter to clump and form galaxies; their mass exceeds visible matter by roughly a factor of five to ten

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