How did the universe come about?

| November 18, 2020 | education

Scientists still cannot agree on the origin of the universe. There are three theories of its appearance: theological, the theory of the “Big Bang” and scientific and philosophical theory.
Scientifically, the most popular version of the origin of the Universe is the Big Bang theory.
It lies in the fact that about 20 billion years ago, our universe was the size of a grain of sand. But despite its very small size, its density was more than 1100 g / cm3. Due to the high density, an explosion occurred (it presumably happened 13.5 billion years ago), which was able to divide a grain of sand into many particles, from which the Universe was then formed. This theory is confirmed by the fact that all objects in the Universe are constantly moving away from each other, i.e. the space in it is constantly expanding.



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