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j-lee00
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why is the temperature distribution of hot gases inside galaxies evidence for dark matter
and why is Type 1a Supernovae evidence for dark energy
and why is Type 1a Supernovae evidence for dark energy
You will get a better, more focused answer if you provide a link to an article where dark matter and hot gas are discussed.j-lee00 said:why is the temperature distribution of hot gases inside galaxies evidence for dark matter
and why is Type 1a Supernovae evidence for dark energy
Dark matter and dark energy are two of the biggest mysteries in modern physics. Dark matter is a type of matter that does not interact with light and thus cannot be seen directly. It is thought to make up about 85% of the total matter in the universe. Dark energy is a force that is causing the expansion of the universe to accelerate. It is thought to make up about 70% of the total energy in the universe.
Scientists have observed the effects of both dark matter and dark energy through various experiments and observations. The most compelling evidence for dark matter comes from the rotation curves of galaxies, which show that there is more mass in galaxies than can be accounted for by the visible matter. The existence of dark energy is supported by observations of the accelerating expansion of the universe.
Dark matter and dark energy play a crucial role in the formation and evolution of galaxies. Dark matter provides the gravitational pull necessary to hold galaxies together, while dark energy affects the expansion of the universe and the rate at which galaxies move away from each other. Supernovae, which are the explosive deaths of massive stars, can also provide valuable information about the distribution of dark matter and the effects of dark energy on the universe.
Currently, there is no way to directly detect or measure dark matter and dark energy. Scientists are working on various experiments and techniques to try and detect these elusive substances, but as of now, they remain invisible and can only be studied through their effects on the visible universe.
There are many theories about the nature of dark matter and dark energy, but the most widely accepted theories include the Cold Dark Matter (CDM) model and the Cosmological Constant model. The CDM model suggests that dark matter is made up of weakly interacting massive particles (WIMPs) while the Cosmological Constant model suggests that dark energy is a property of space itself, similar to the force of gravity. However, these theories are still being researched and debated by scientists.