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koolmodee
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So they say the universe is made of baryonic matter, dark matter and dark energy.
What about photons?
What about photons?
koolmodee said:Thanks for the answers!
But I'm not quite satisfied yet. Was their contribution non-negligible only in the early universe? Is it present universe negligible?
Baryonic matter is a type of matter that makes up all the elements found in the periodic table. It is composed of protons, neutrons, and electrons, which are the building blocks of atoms.
Scientists estimate that baryonic matter makes up about 5% of the total mass of the universe. The rest of the universe is composed of dark matter and dark energy, which are still not fully understood.
Baryonic matter is found in various forms, including stars, planets, gas, and dust. It is distributed throughout the universe in clusters and filaments, with large voids in between them.
Scientists study baryonic matter through various methods, such as observing the light and radiation emitted by different objects in the universe. They also use advanced telescopes and instruments, such as the Hubble Space Telescope, to study the composition and behavior of baryonic matter.
Baryonic matter plays a crucial role in understanding the structure and evolution of the universe. It provides insight into the formation of galaxies, stars, and planets, and helps scientists understand the distribution of matter in the universe. Studying baryonic matter also allows scientists to test and refine theories about the origins and fate of the universe.