Billions of years ago, an extraordinary event occurred without which nothing would exist. It was the beginning of the universe. This was the time when a large amount of energy in an infinitesimally small space expanded violently and led to the creation of the universe and everything we see around us today. Understanding the history and nature of the creation of the universe can perhaps be considered the greatest scientific achievement. Say no to plagiarism. Get a tailor-made essay on “Why Violent Video Games Should Not Be Banned”? Get an Original Essay There are different views on what happened before the Big Bang, but this is a very big question. Astrophysicists have claimed that there is no answer to what happened before the Big Bang, but there are several theories. It is assumed that one can speculate because there are no tools to reach the truth. A deep and easily understood problem is the distinction between whether the universe is finite or infinite and that in terms of time and space. Other questions include whether the universe continues forever or does it have a limit? These questions have been asked for centuries. Archytas, Plato's colleague, said: “Imagine a warrior with a spear at the edge of the universe and he throws the spear. Do we imagine it lasting forever or does it hit something and bounce back? In this case, what is the limit? This leads us to two possibilities: either the universe is infinite or it ends, and if it ends, what is the end? Cosmologists ask themselves the same question. When Copernicus replaced the geocentric model with the heliocentric model, it was a revolutionary step and not just astronomical. These ideas were once incomprehensible and highly questionable. The statue of Giordano Bruno in Rome was burned alive by the Catholic Church not only because they believed in an infinite universe, but also because they believed in the existence of countless stars and planets and the life that surrounds them and perhaps to people. The next venture into the infinity of the universe was by Isaac Newton who postulated an infinite universe infinite in extent, time and space. He was followed by Wright who imagined infinite inhabited worlds in the universe. But it was hard to believe conceptually. This was so because, in an infinite universe, every branch line must end in a point of light, whether a star or a galaxy. Since the light from each star decreases the square of the distance, the number of stars increases by the same factor. And so, logically, the night sky must be as bright as the day sky in an infinite universe. It was a paradox that Newton never resolved. So it took more time to understand how exactly the universe works and resolve the paradox. Galaxies were once considered “island universes.” Isolated realms of gas, dust and billions of stars separated by unimaginable distances. In fact, no galaxy is an island, as researchers say, galaxies prefer company. The gravitational pull of a large galaxy mass attracts neighbors of the same size or smaller. Galaxies can bring together hundreds or millions of them to form a huge cluster. Another dichotomy emerged during a debate over whether the Milky Way, the star system we inhabit, constituted the entire universe or whether there were other island universes. Herschel tried to map the universe he knew was vast. But at the turn of the 20th century, two very different ideas were at play. In one, the fuzzy nebulae were hypothesized to be distant star systems like theMilky Way, perhaps hundreds of thousands of light years away. However, the equivalent model that was accepted said that these fuzzy patches of light were just star formations within our own large galaxy that was the universe. This problem was solved by Edwin Hubble who made a revolutionary discovery by measuring the astronomical distance to a few dozen galaxies. By the end of his career, he had extended the size of the known universe by a factor of a thousand. The universe is made up of dark, mysterious matter rather than the luminous, visible matter we are familiar with called dark matter. Astronomers are convinced that dark matter really exists because the law of gravity has passed many tests, and if we add dark matter into computer simulations, we get large-scale structures that resemble our universe. In 1964, by accident, the cosmic background radiation was discovered. a relic of the early universe that, along with other observational evidence, made the Big Bang the accepted theory in science. Recent observations even seem to suggest that the expansion of the universe is accelerating. The Big Bang can be described as space extending everywhere at once. The universe has not expanded into anything, space has simply expanded into itself. The universe has no boundaries, by definition, there is no outside the universe. The universe is all that exists. In this hot, dense environment, energy only manifested itself as particles for a brief moment. From the gluons, pairs of quarks were created which destroyed each other, perhaps after emitting more gluons. They discovered that other short-lived quarks interacted to form new pairs of quarks and new gluons. Matter and energy were not only equivalent in theory. It was so hot that it was practically the same thing. Around this time, matter prevailed over antimatter. Today we are left with only matter and perhaps no antimatter at all. Instead of one massive force in the universe, there were now multiple versions of it acting according to different rules. Currently, the universe has expanded to billions of kilometers in diameter, resulting in a decrease in temperature. The cycle of quarks born and converted back into energy suddenly stopped. The quarks began to form new particles like protons and neutrons. There are many combinations of quarks that can form all kinds of hadrons, but very few are very stable for any reasonable length of time. The universe, which extends over a hundred billion kilometers, was then cold enough to allow most neutrons to decay into protons and to form the first atom, hydrogen. The universe can be imagined as an extremely hot soup, ten billion degrees Celsius, filled with countless particles and energy. Over the next few minutes, things calmed down and calmed down very quickly. Atoms are made up of hadrons and electrons, creating a stable, electrically neutral environment. Some call this period the Dark Ages because there were no stars because the hydrogen gas did not allow visible lights to move. When hydrogen gas grouped together after millions of years and gravity put a lot of pressure on it, stars and galaxies began to form. Their radiation dissolved stable hydrogen gas into plasma that still permeates the universe today and allows visible light to pass through. Finally, there was light. However, speaking about what happened at the very beginning of the Big Bang, we don't know at all what happened.,.