All the evidence and theories about the cosmos can be combined into one simple model of cosmology. It contains only six parameters and these numbers define the Universe.
According to an excerpt from physicist Lyman Page’s Little Book of Cosmology, the first three parameters tell us the contents of the universe. first parameter explains the amount of ordinary matter or atoms in the universe: it contains only 5% of atoms.
Second parameter associated with dark matter. This is a very understudied part and makes up 25% of the universe.
Third parameter is the cosmological constant. This energy forms the basis of the accelerating expansion of the Universe and accounts for 70% of the energy balance of all matter and the Universe. People also don’t yet know what kind of energy this is.
fourth parameter It shows how opaque the universe is for photons passing through it. This is called optical depth. This parameter captures the scarce knowledge of mankind about the formation and explosion of the first stars, the formation of the first galaxies in the Universe.
last two options associated with random aberrations that give rise to the entire structure of the universe. One of them is the primary energy spectrum. It describes the deviations of the density of the Universe in three-dimensional space. The other parameter is the scalar spectral index. It is more difficult to understand than others, but it is he who helps to learn about the birth of the Universe.
Thanks to these six parameters, we can perform any cosmological measurement in general. Calculate the age of the Universe included: 13.8 billion years (plus or minus 40 million years).
Source: Ferra
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