Dark matter
Dark matter in universe is a hypothetical matter that is not observable and no interaction with electromagnetic radiation, such as light. About 85% of matter in is thought as dark matter.
In most case dark matter is non-baryonic in nature. Dark matter is composed with undiscovered universesubatomic particles.
According to Lambda CDM model, about 26% of mass energy of universe is dark matter, 68% is from dark energy and 4.9% is from ordinary matter and energy.
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