Rich universe

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How big is universe? And when is the birth of universe? Can we date different life in universe? The questions have perplexed people many years. The universe include two aspects: one is space we are staying, the other one is time we are living. And scientists have explored universe for many yeas, but it still don't know that how big and the birth of universe.

Earth we are living now is bigger for us, but for the sun, it is so small, on the other hand, the sun is smaller than Milky Way galaxy, then scientists have found many galaxy like the Milky Way galaxy. So it is a insoluble question for us to know how big of universe.

But the other aspect, without the big of the universe, it has many resource in space, it is so rich. Now the resource on earth is scanty， so it is a good source for us to find the resource in space.

The resource in space are so various and rich. On the moon and Mas, there are many rare mineral resources, the sun also has vast solar energy for us, and radiation not only has bad effects for us, but also has good aspect, like we use the radiation to make seed have gene mutation. Last, in space, hydrogen gas are very rich. So if we have control the technology of mining, we won't be limited by the short resource on earth, i think the science and technology will have a high speed development. Solar and hydrogen energy are clean energy, we don't care environment any more, the more resources can be used to improve the science and technology, and we will break the limit of earth , solar system, Milky Way galaxy, enter into vast universe, open a new age in space, to solve the questions perplex us many years, and find new problems, improve in constant problems.