Once upon a time, 13.7 billion years ago, the universe was created through a dense explosion of energy that gathered at a point. The effect of this explosion still ongoing and widespread. This explosion is called "Big Bang". Everything began to take shape through the blast. When there is the Big Bang, a cloud of gas and dust spread to all directions and start spinning, then forming galaxies.
Earth was formed through this explosion. The cloud of gas and dust that rotates rapidly becoming increasingly smaller, and then into a form that consists of a liquid by half. in this event, the earth is shaped like a ball that spins very fast and contain stones Basar very hot, then its surface to cool, dry and hard. Due to the earth temperature decreases, the vapor becomes depressed and turns into water droplets, then fell into a heavy rain and into the origin of the ocean.
Earth is the third order (3) in terms of distance to the sun and is the only planet in which there is life. The average distance between the earth and the sun is 150 million km. This distance is the most suitable conditions as a condition of life. Orbit around the earth to the sun is about 940 million km. Earth moves in its orbit with a speed of 108,000 km / h or 30 km / sec.
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