Most of the dark matter in a galaxy is located in a galaxy's (hint: one word) which allows the luminous matter, particularly near the outer edges of the galaxy, to rotate around the center of the galaxy at a faster speed than predicted by Kepler's 3rd Law.
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Most of the dark matter in a galaxy is located in a galaxy's (hint: one word) which allows the luminous matter, particularly near the outer edges of the galaxy, to rotate around the center of the galaxy at a faster speed than predicted by Kepler's 3rd Law.
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