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The Big Bang Theory is a theory trying to explain what happened at the beginning of the universe and the early development of the universe Scientists and physicists have learned that our universe had a beginning But before the universe was created there was nothing not even space or time existed But after our universe was created The Big Bang theory is trying to explain what happened during and after the universe was created Although there were many other theories trying to explain how the universe evolved the Big Bang theory was the most popularA theory is a clever idea that cannot be proven but can make testable predictions They are usually supported by evidence and scientific laws Most theories can be tested through experiments to check if the theory is right or wrong There are two different types of theories a conjecture and a hypothesis A conjecture is a theory that has no evidence of existence or observations An example of a conjecture is god There is no evidence of gods existence it is more of a belief The hypothesis is a theory supported by facts and evidence so it can be proven right An example of this is the big bang theory because it has evidence to support the theoryIn the later 1920s a Belgian Roman Catholic priest Georges Lemaitre had proposed a theory that the universe was created as a single tiny atom named singularity He used Hubbles law to understand that the universe was expanding He realized that the universe had to originally start as a tiny atom which slowly expanded to the size of our universe today He proposed this idea too many scientists including Albert Einstein Einstein thought that his theory was incorrect and said the universe has always stayed the same Eventually Einstein realized Georges was correct and the Big Bang Theory was createdEdwin Hubble a famous physicist could be credited for the origin of the big bang
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