Mixed dark matter refers to a theoretical framework in cosmology and astrophysics that posits the existence of multiple types of dark matter particles, which can have different properties and behaviors. Generally, dark matter is understood as a form of matter that does not emit, absorb, or reflect light, making it undetectable by traditional astronomical instruments. Instead, its presence is inferred from gravitational effects on visible matter, radiation, and the large-scale structure of the universe.
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