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Chapter 4.8 The ultimate form of Universe

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Black hole needs a extra long time to vaporize, and it will explode finally. Let's take an example, there is a planet with the same solar mass as our sun, it may need 10 to the power of 100 years to vaporize. In a nutshell, the vaporization of black hole will not affect the life of human much. But when we concern about the future of our universe, the vaporization of black hole is still a very important subject.

Our universe is expanding. And now what we don't know is that, will our universe still expand, or will it shrink then? But there are a lot of scientists think that our universe will still expand. When will happen in the future of our universe.

Our sun will have its fuel exhausted in 5 billions years. At that time, our sun will have expanded to the orbit of Mars. It will then shrink to a radius with only a few kilometers. This is called the white draft. The planet with its mass smaller than the solar mass will have a longer life, but all planets will be exhausted in 100 trillion years. Finally, our universe will become dark. And there will only have black holes, neutron stars and white drafts, and some planets as like as the Jupiter.

In this circumstance, galaxies will collide together, and the one which gets more energy would have been thrown away the galaxy. At last, there is only Black holes and neutron stars.

But it is not the ultimate form of universe. At last, all black holes will have itself vaporized and lighted up. Then this is the real ultimate of universe.

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