Genesis: the seventh “day” of the Universe

by time news

The birth of the Earth. And of humanity – Guido Tonelli /Courier TV

Ten billion after the Big Bang, the Universe is full of galaxies. Our galaxy contains 200 billion stars: and in a peripheral branch of this galaxy a protoplanetary disk is formed: a star, the Sun. Around that star some planets start to rotate: and the Earth has very particular conditions: a nucleus metallic, a rocky surface covered with water, cloaked in an atmosphere. Magnetic field, atmosphere, volcanic activity, energy available for complex chemical reactions, are necessary conditions for the birth of life. Until the moment when, in an African gorge, apes begin to use tools, and to use forms of symbolic thought …


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