How the Earth formed?

About 4.5 billion years ago there was no earth or other planets. Around the newly born sun raging dark cloud of hot gas and dust. Gradually cloud cooled and thickened gas (skondensuvavsya) in millions of drops. These drops attracted to each other under the influence of gravity - well formed Earth and other planets in our solar system. And half years passed before freezing on the surface of the Earth formed a hard crust, and around the world - the atmosphere.

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