- initial singularity or the Big Bang singularity is a simplified model for the origin of the universe, extrapolating the Big Bang model of cosmology backward to a state of arbitrarily high density and temperature. While the Big Bang refers to the hot, dense state in the early universe from which the expansion of the universe began, extrapolating general relativity beyond this state leads to a singularity. However, this singularity is considered a breakdown of the current theoretical models, not a physically meaningful description of the universe’s origin.
- The chronology of the universe can be divided into five parts:[6]: 4.1
In cosmology, time and space are connected: space expands as time increases. Time at each point in space (for example, a galaxy) can be uniquely defined in terms of an imaginary clock at that point. These clocks move with the point in space as the universe expands; they are synchronized to a single point in the distance past. Light from distant galaxies is emitted in the past then travels at the speed of light: knowledge about a distant galaxy is limited to one point in time called the look-back time. During the journey from a distant point, the universe continues to expand, stretching the wavelength of the light along the way, an effect called cosmological redshift.[4]: 72 The redshift can be measured by comparing incoming light to known spectroscopic lines and the resulting value can be related to the comoving distance to the emitter.[5] Consequently, experimental knowledge about the chronology of the universe is derived by observing distant light- :
- Inflation, the first era supported by experimental evidence, a period of exponential expansion that ends with the conversion of energy in to particles,
- Quark soup, the initial particles coalesce, dark matter forms,
- Big bang nucleosynthesis, combining nucleons create the cores of the first atoms,
- Gravity builds cosmic structure, reduced density allows matter to dominate over radiation for control of expansion, photons decouple to form the cosmic background radiation, and gravitational attraction builds stars, galaxies, and clusters of galaxies, and
- Cosmic acceleration, continued expansion allows dark energy to overcome gravitational force, inhibiting larger structures.
- With these large subsections are many interesting events and transitions. Older models divided the chronology differently, using different terminology or emphasis.
- The timeline of the universe begins with the Big Bang approximately 13.8 billion years ago, followed by rapid inflation, then the formation of the first atomic nuclei during Big Bang nucleosynthesis. After about 380,000 years, the universe cooled enough for atoms to form (recombination), releasing the first light (the cosmic microwave background). Over the next few hundred million years, gravity formed the first stars and galaxies, eventually leading to the formation of our solar system about 4.57 billion years ago.
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Here are key stages in the universe’s timeline.:
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The Big Bang (13.8 billion years ago
The universe begins in an extremely hot and dense state with all fundamental forces unified.https://youtu.be/empty_video
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Inflation:A period of extremely rapid expansion, causing the universe to double multiple times.
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Formation of Fundamental Particles:As the universe expanded and cooled, quarks, protons, and neutrons formed.
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Big Bang nucleosynthesis (first few minutes):Protons and neutrons fused to create the nuclei of the first elements, primarily hydrogen and helium.
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Recombination (around 380,000 years after the Big Bang):The universe cooled enough for electrons to combine with nuclei, forming the first neutral atoms. This event released the first light that we can still observe today as the cosmic microwave background (CMB).
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Formation of Galaxies and Stars:Gravity pulled matter together, leading to the formation of the first stars, galaxies, and quasars.
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Formation of the Solar System (4.57 billion years ago):Our own solar system, including Earth, formed from the accumulation of gas and dust.
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The Stelliferous Era (150 million to 100 trillion years after the Big Bang):An era characterized by star formation.
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Dark Energy Dominance (around 7.8 to 10.4 billion years after the Big Bang):Dark energy began to dominate the universe’s expansion, causing
In physical cosmology and astronomy, dark energy is a proposed form of energy that affects the universe on the largest scales. Its primary effect is to drive the accelerating expansion of the universe. It also slows the rate of structure formation.[1] Assuming that the lambda-CDM model of cosmology is correct,[2] dark energy dominates the universe, contributing 68% of the total energy in the present-day observable universe, while dark matter and ordinary (France) matter contribute 27% and 5%, respectively, and other components such as neutrinos and photons are nearly negligible.[3][4][5][6] Dark energy’s density is very low: 7×10−30 g/cm3 (6×10−10 J/m3 in mass-energy), much less than the density of ordinary matter or dark matter within galaxies. However, it dominates the universe’s mass–energy content because it is uniform across space.[7][8 The chronology of the universe describes the history and future of the universe according to Big Bang cosmology. Research published in 2015 estimates the earliest stages of the universe’s existence as taking place 13.8 billion years ago, with an uncertainty of around 21 million years at the 68% confidence level.
The order of the universe can refer to the cosmic hierarchy of structures, from galaxies to clusters to superclusters, or to the fundamental physical laws like the four fundamental forces that govern all interactions within the cosmos. It also encompasses the chronological stages of cosmic evolution, beginning with the Big Bang and continuing through different eras of the universe’s development and potential future. Additionally, the concept can be interpreted philosophically or theologically, suggesting an inherent structure and purpose.
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THE EVENT ORGINATOR’S BUILD OUT OF THE UNIVERSE, AND GROWING NEW KNOwn THOUGHT.
