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What are the properties of dark matter?

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It interacts gravitationally and it is forming stable giant halos around the galaxies. That's what we know "for sure". The second property means, that the particles it consists of must be moving rather slowly (slower than escape velocity from a ga... read more

Dark Matter is an invisible matter that wraps all galaxies and it's properties are not understood at all, other than that it exerts gravitational pull within galaxies. Dark Matter is invisible because we look through it in the milky way when observing distant galaxies and we look through it in distant galaxies (because they are also wrapped in it). read more

Dark matter is a theorized form of matter that is believed to account for approximately 80% of the matter in the universe, and about a quarter of its total energy density. The majority of dark matter is thought to be non-baryonic in nature, possibly being composed of some as-yet undiscovered subatomic particles. read more

Dark matter is a hypothetical kind of matter that cannot be seen with telescopes but accounts for most of the matter in the universe. The existence and properties of dark matter are inferred from its gravitational effects on visible matter, radiation, and the large-scale structure of the universe. read more

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