dark matter definition

  • noun:
    • situation that produces little or no detectable radiation of the very own, postulated to take into account gravitational forces noticed on astronomical objects and to engage in the missing size.
    • Particles of matter that cannot be recognized by their particular radiation but whoever existence is inferred from gravitational impacts.
    • (cosmology) a hypothetical kind of matter that is thought to make up 90 % of the world; its invisible (doesn't absorb or give off light) and will not collide with atomic particles but exerts gravitational power

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