What is dark matter
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Dark matter is a form of matter thought to account for approximately 85% of the matter in the universe and about a quarter of its total energy density. Most dark matter is thought to be non-baryonic in nature, possibly being composed of some as-yet undiscovered subatomic particles.
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Dark matter is a form of matter thought to account for approximately 85% of the matter in the universe and about a quarter of its total energy density.
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