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Now the question is, what power supply is the cause of this. There is only one possible solution, and that is a gigantic black hole. A black hole comes into being when old stars completely collapse. It is an area in space with very high gravitation, that absorbs all the matter like a cosmic hoover. A black hole is surrpunded by a very fast turning disc of hot gas. The matter that is attracted by the gravitation, absorbs very much energy. This energy is released again when the matter finds its way through the black hole.
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