dark matter
1
(physics) an invisible substance that makes up most of the universe's mass, detectable only through its gravitational effects
- Dark matter is a form of matter that does not emit, absorb, or reflect light, making it invisible and detectable only through its gravitational effects.
- Astronomers believe that dark matter makes up approximately 27% of the universe's total mass and energy content.
- Despite extensive research efforts, the true nature of dark matter remains one of the biggest mysteries in astrophysics.
- Dark matter is thought to play a crucial role in the formation and evolution of galaxies and large-scale structures in the universe.
- Various theories have been proposed to explain the identity of dark matter particles, but conclusive evidence has yet to be found.