Define dark matter in points
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Dark matter, a component of the universe whose presence is discerned from its gravitational attraction rather than its luminosity. ... Dark matter makes up 30.1 percent of the matter-energy composition of the universe; the rest is dark energy (69.4 percent) and “ordinary” visible matter (0.5 percent).
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Dark matter, a component of the universe whose presence is discerned from its gravitational attraction rather than its luminosity. ... Dark matter makes up 30.1 percent of the matter-energy composition of the universe; the rest is dark energy (69.4 percent) and “ordinary” visible matter (0.5 percent)
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