About 27% of the universe is made up of dark matter, a mysterious substance influencing cosmic structure.
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Space
Dark matter is an unseen force that plays a crucial role in the universe's structure and evolution. It interacts gravitationally with normal matter but does not emit, absorb, or reflect light, making it invisible and detectable only through its gravitational effects. The existence of dark matter is inferred from the motion of galaxies and galaxy clusters, which cannot be explained by visible matter alone. Despite extensive research, scientists are still trying to determine what dark matter actually is, making it one of the greatest enigmas in astrophysics today.
