What is the Big Bang theory? Well, it's more of a half-constructed theory to give atheists something to believe in. So why believe it then? We believe in it because the science education system is constantly evolving. It shouldn't really be taught in schools, but rather scientists develop the curriculum for science classes. In fact, nothing solid. But that gets out of the way. Let's talk about the Big Bang! Say no to plagiarism. Get a tailor-made essay on “Why Violent Video Games Should Not Be Banned”? Get the original essay So, astronomers believed that the Universe was created about 14 billion years ago. At that time, the entire Universe was inside a bubble thousands of times smaller than the head of a pin, incredibly hot and dense. Out of nowhere, this little orb bubble started to expand. This expansion created what we call the Universe. In such a short time, the Universe has gone from the size of an atom to the gigantic galaxy that we have and which continues to grow. According to the Big Bang theory, the universe appeared as a singularity. Singularities are believed to exist at the heart of black holes. These areas of infinite density are called “singularities”. Our universe is thought to start out extremely small, infinitely hot, and infinitely dense. As time goes by, more content. This observation proves that it took each galaxy the same amount of time to move from its starting position to its current position. This observation is called "Hubble's Law", named after Edwin Hubble (1889-1953) who discovered it in 1929. Edwin Hubble's evidence supports the expansion of the universe and suggests that the universe was formerly compacted. Third, if the universe was incredibly hot, as the Big Bang suggests, scientists should be able to regain some of that heat. In 1965, scientists used the cosmic microwave background radiation that permeates the observable universe. Finally, the discovery of large quantities of helium and hydrogen supports the Big Bang theory. Keep in mind: this is just a sample. Get a personalized article from our expert writers now. Get a Custom Essay Now that we have the basics of the Big Bang Theory, so what happened after the initial expansion? In the fractions of a second after initial creation, what was once a void began to expand into the universe. Right after the Big Bang, the universe was extremely hot like an open fire, due to the movement of matter and antimatter in all directions. (For each type of matter particle, there is also a corresponding antimatter particle. Antimatter particles look and behave exactly like their corresponding matter particles, except that they have opposite charges.) When matter has began to cool, there was a roughly equal abundance of matter and antimatter. . However, antimatter has disappeared and is rarely found today, leaving only matter to fill it..