The Big Bang Theory

The Big Bang Theory The Big Bang Theory is the recognized hypothesis on how the universe came into existence . It is the most accepted answer to the question How did the universe came into being ' This research aims to discuss the definition of the theory , its history and the proofs that validate the theory

The Big Bang Theory presupposes that there was a moment where nothing existed ( Overview ' 2008 Shestople 1997 . The beginning of the universe was said to have occurred roughly 13 .7 billion years ago ( Overview ' 2008 Creation ' 2002 Pasachoff

, 2007 . It all began with what is called a singularity ( Overview ' 2008 Creation 2002 Shestople 1997 . Astrophysicists thought that singularities were created through vacuum fluctuation (Shestople 1997 . Singularities are actually zones of infinite density ( Overview ' 2008 . What would eventually become the universe was condensed in an atomic nucleus ( Creation ' 2002 . This nucleus was minute in size , but it was very dense and hot at the same time ( Overview ' 2008 Pasachoff , 2007 This compact and dense nucleus exploded , and the explosion in turn created the universe ( Overview ' 2008 Creation ' 2002 Pasachoff 2007 Four Pillars ' n .d . After the explosion , the particles separated from each other it was gravity that brought them together (Shestople , 1997 . As a result , galaxies were created , and this happened in a short span of time . Aside from galaxies , other matter such as energy , space and time , were created as well ( Creation 2002 . After the explosion , the universe expanded and cooled ( Overview ' 2008 Pasachoff , 2007 . At present , it is believed that the universe is still expanding (Shestople 1997

The theory initially arose from what is referred to as field equations (Pasachoff , 2007 . These are mathematical equations of Albert Einstein in his Theory of Relativity in 1915 (Pasachoff , 2007 . Many scientists have formulated solutions for the equations posed by Einstein . These include Belgian Georges Lemaotre and Dutch Willem de Sitter and a physicist from Russia named Alexander Friedmann . They all presented different views of the universe . For Lemaotre , the universe originated from a primeval atom (Pasachoff , 2007 . The second law of thermodynamics was the basis for his study ( Creation ' 2002 . Due to the singularity , he believed that the nucleus disintegrated , and in turn resulted in numerous elements . His theory of the universe was published in the journal entitled Nature on May 9 , 1931 ( Creation 2002 . In essence , his cosmological theory did hypothesize the expansion of the universe . De Sitter , on the other hand , did not have matter in his universe (Pasachoff , 2007 . In 1922 , Alexander Friedmann created the solutions for the Einstein 's equations . He believed that the universe also expanded from a clump of matter (Pasachoff , 2007 It was Friedmann 's contribution that was the foundation of the big bang theory

In 1929 , Edwin Hubble , an American astronomer , also contributed to the big bang theory through his discovery regarding redshifts of light (Pasachoff , 2007 . The same astronomer was able to discover that another galaxy existed outside Milky Way it was called Andromeda ( Creation ' 2002 . From...