Big Bang

The Origin Some 12 billion years ago the universe emerged from a hot, dense sea of matter and energy. As the cosmos expanded and cooled, it spawned galaxies, stars, planets and life. Since the beginning of human civilization, people have always questioned the origins of their existence and the creation of the universe. Cosmology, the scientific study of the large scale structure and evolution of the universe, has developed and evolved in response to the human …

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