Entity: DARK-MATTER
Dark matter is nonluminous matter that is hypothesized to exist to account for various observed gravitational effects. It is unseen matter that may make up more than ninety percent of the universe and is considered the invisible glue that holds the universe together.
DARK-MATTER
Etymology
The term 'dark matter' refers to nonluminous matter that is not directly detected by astronomers but is hypothesized to exist to explain various gravitational effects in the universe.
Definition
Dark matter is a mysterious form of matter that does not interact with light or other electromagnetic radiation. It is believed to make up a significant portion of the universe, playing a crucial role in the structure and dynamics of galaxies and the cosmos.
Historical Context
The concept of dark matter emerged in the 20th century as astronomers observed discrepancies between the mass of celestial objects calculated from their gravitational effects and the mass visible through electromagnetic radiation. The existence of dark matter was proposed to reconcile these inconsistencies and explain the behavior of galaxies and the universe at large.
Cultural Significance
Dark matter has captured the imagination of scientists and the public alike, representing a profound mystery in our understanding of the cosmos. Its elusive nature and fundamental role in shaping the universe have inspired numerous scientific studies, theories, and discussions about the nature of reality.
Related Concepts
- Dark Energy: Another enigmatic component of the universe that is thought to be responsible for the accelerated expansion of the cosmos.
- Baryonic Matter: Ordinary matter composed of protons, neutrons, and electrons that make up stars, planets, and visible objects.
See Also
A mysterious form of matter that does not interact with light or other electromagnetic radiation, hypothesized to exist to explain gravitational effects in the universe.