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However, Penrose, based at the University of Oxford , has developed a rival theory known as “ conformal cyclic cosmology “ (CCC) which posits that the universe became uniform before, rather than after, the Big Bang. During the first three minutes of the universe, most of the deuterium combined to make helium.
In 1940's George Gamow realized the helium could have been produced just after the Big Bang due to extreme temperature in the Primordial Fireball Present abundances (like deuterium) tell us what was going on very early in the evolution of the universe History of creation of elements in the early universe
But the Universe didn't start off with these heavier elements at all.
Trace amounts of lithium were also produced at this time. This process of light element formation in the early universe is called “Big Bang nucleosynthesis” …
During the first three minutes of the universe, the light elements were born during a process known as Big Bang nucleosynthesis. This period of “inflation” would have ironed out any irregularities in the structure of the early universe, leading to the very uniform cosmos that we observe around us. Light elements (namely deuterium, helium, and lithium) were produced in the first few minutes of the Big Bang, while elements heavier than helium are thought to have their origins in the interiors of stars which formed much later in the history of the Universe. Titled “The Origin of Chemical Elements”, it described a process by which all of the known elements in the universe could have come into existence shortly after the big bang.
It is possible that 3 He in the mantle is a fossil of the primary atmosphere, but the very low abundances of the noble gases relative to chemically reactive volatile elements such as carbon, hydrogen, nitrogen, and sulfur indicates that they have had profoundly different histories.
This diagram shows a short timeline of the universe.
It is now known that the elements observed in the Universe were created in either of two ways. At very early times ( 10-32 seconds), it is thought that the universe had this very rapid inflationary phase, where quantum fluctuations were blown up to macroscopic scales.After this brief period of exponential growth, the universe then transitioned into a more gradual phase of expansion and cooling. Both theory and observation lead astronomers to believe this … A Timeline of the Universe. There is very little evidence left of Earth’s primary atmosphere.
2% Heavier elements. As the universe cooled, the neutrons either decayed into protons and electrons or combined with protons to make deuterium (an isotope of hydrogen).
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