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Glenn
Is it theory or fact that the universe is 4% baryonic, 23% Dark matter, 73% Dark energy.
Theory right?
-Glenn
Theory right?
-Glenn
Chronos said:Everything is theory. That particular theory, however, has pretty decent evidence in its favor.
Fact: In science, an observation that has been repeatedly confirmed and for all practical purposes is accepted as "true." Truth in science, however, is never final, and what is accepted as a fact today may be modified or even discarded tomorrow.
Theory: In science, a well-substantiated explanation of some aspect of the natural world that can incorporate facts, laws, inferences, and tested hypotheses. ... In science, theories do not turn into facts through the accumulation of evidence. Rather, theories are the end points of science. They are understandings that develop from extensive observation, experimentation, and creative reflection. They incorporate a large body of scientific facts, laws, tested hypotheses, and logical inferences.
Baryonic matter is the ordinary matter that makes up all the elements we know and see in our daily lives. This includes atoms, molecules, and larger structures like stars, planets, and galaxies. Baryonic matter is made up of protons, neutrons, and electrons.
Dark matter is a type of matter that does not interact with light or other forms of electromagnetic radiation, making it invisible to traditional telescopes. Its existence is inferred from its gravitational effects on visible matter in the universe. It is thought to make up about 23% of the total mass of the universe.
Dark energy is a type of energy that is thought to be responsible for the accelerated expansion of the universe. Unlike dark matter, it is not a form of matter, but rather a property of space itself. It is estimated to make up about 73% of the total energy in the universe.
Scientists use a variety of observational techniques, including measurements of the cosmic microwave background radiation and the distribution of galaxies, to estimate the amounts of baryonic matter, dark matter, and dark energy in the universe. These measurements are combined with theoretical models to come up with the current estimates.
The existence of dark matter and dark energy has significant implications for our understanding of the universe and its evolution. It suggests that there is much more to the universe than what we can observe with traditional telescopes and that our current understanding of the laws of physics may not be complete. It also raises questions about the ultimate fate of the universe and the possibility of other forms of matter and energy that we have yet to discover.