The exact amounts of dark matter, dark energy, and matter in the universe are still not precisely known. These quantities are difficult to measure directly, and scientists rely on various observational data and theoretical models to estimate their proportions.
Based on current cosmological models, it is estimated that the composition of the universe consists of approximately:
Dark Matter: Dark matter is a form of matter that does not interact with light or other electromagnetic radiation, making it invisible and challenging to detect. It is inferred from its gravitational effects on visible matter and the large-scale structure of the universe. It is estimated that dark matter makes up about 26.8% of the total matter-energy content of the universe.
Dark Energy: Dark energy is a hypothetical form of energy that is thought to be responsible for the observed accelerated expansion of the universe. It is believed to exert a repulsive gravitational force. Dark energy is estimated to contribute to about 68.3% of the total energy content of the universe. The exact nature of dark energy is still a subject of ongoing research and remains one of the greatest mysteries in modern cosmology.
Ordinary Matter: Ordinary matter, which includes atoms, molecules, stars, galaxies, and everything visible in the universe, constitutes a relatively smaller fraction. It is estimated to make up around 4.9% of the total matter-energy content of the universe. This includes both visible matter and the so-called baryonic matter.
It's important to note that these estimates are based on current observational data and theoretical models, and our understanding of these components is continuously evolving as scientific research progresses. Further studies, observations, and refined models are necessary to gain a more accurate understanding of the exact proportions of dark matter, dark energy, and ordinary matter in the universe.