Where does everything come from? How did we get to where we are today? What is the place of humans? Where are things going? These are the questions that the origin stories of different cultures have been answering for thousands of years. Big History is an attempt to examine history through science, from the Big Bang to the present day. In this project, we focus on the origin of the universe — the Big Bang theory. Say no to plagiarism. Get a tailor-made essay on 'Why violent video games should not be banned'?Get the original essayDiscoveries in astronomy and physics have shown reasonable doubt that our universe actually had a beginning. It all started with an explosion known as the Big Bang. Astronomically, the Big Bang is a theory that the universe was born billions of years ago in an explosion from a single point of almost infinite energy density. In its simplest form, the Big Bang is a scientific theory about how the universe began and then formed the stars and galaxies we see today. Over time, the universe grows and the temperature drops. Cosmology is the study of how the universe began and how it developed. According to the theory, the universe began as very hot and dense super forces that are the combination of the four fundamental forces without stars, shapes or any, about 13.7 billion years ago. The singularity is an area that challenges our current understanding of physics. A singularity is defined as a point where the predictable nature of physics breaks down because the curvature predicted by general relativity at that point is infinite. They are believed to exist in the hearts of black holes. Scientists who study cosmology agree that this theory matches what they have observed so far. Other scientists who contributed to research into the expanding universe include Vesto Slipher, Albert Einstein, Alexander Friedmann and Edwin Hubble. There are three strong pieces of evidence that support the Big Bang theory. They include the existence of microwave background radiation, the expansion of the universe also known as the red shift leading to Hubble's law and the relative abundance of very light elements that are hydrogen and helium. Stars do not stay the same, but change as they age. Keep in mind: this is just a sample. Get a personalized article from our expert writers now. Get a Custom Essay Before the discovery of the Big Bang, it can be said that time had no meaning. If the Big Bang was the beginning of time, then there is no universe before the Big Bang, since there could not be one before if there was no time! Meanwhile, others argue that the Big Bang was not the beginning of time 13.8 billion years ago. On the contrary, some of them believe that there was a completely different universe before the Big Bang and that it could be very different from the universe we know today..