The Big Bang theory is the prevailing cosmological model for the early development of the Universe. According to the theory, the Big Bang occurred approximately 13.798 ± 0.037 billion years ago. Yes we consider that we have her age. And this time the universe was so very hot, and just continued to expand and after the expansion.
Sufficiently cooled the Universe to allow energy to be converted into various subatomic particles, including protons, neutrons, and electrons. Though simple atomic nuclei formed within the first three minutes after the Big Bang, thousands of years passed before the first electrically neutral atoms formed.
he majority of atoms that were produced by the Big Bang are hydrogen, along with helium and traces of lithium. Giant clouds of these primordial elements later coalesced through gravity to form stars and galaxies, and the heavier elements were synthesized either within stars or during supernovae.
The Big Bang is not just a Scientific Theory. It was carefully studied by scientists before and now every country. And it is accepted by the community as I mahileg Science. It offers a comprehensive explanation for a broad range of observed phenomena, including the abundance of light elements, the cosmic microwave background, large scale structure, and the Hubble diagram.
The core ideas of the Big Bang the expansion, the early hot state, the formation of light elements, and the formation of galaxies are derived from these and other observations. As the distance between galaxies increases today, in the past galaxies were closer together. The consequence of this is that the characteristics of the universe can be calculated in detail back in time to extreme densities and temperatures, while large particle accelerators replicate such conditions, resulting in confirmation and refinement of the details of the Big Bang model. On the other hand, these accelerators can only probe so far into high energy regimes, and astronomers are prevented from seeing the absolute earliest moments of the universe by various cosmological horizons. The earliest instant of the Big Bang expansion is still an open area of investigation.
The Big Bang theory does not provide any explanation for the initial conditions of the universe; rather, it describes and explains the general evolution of the universe going forward from that point on.
