The Universe has a lot of suns and planets. But most of it is stil dark. The Milkway galaxy is a very small part of it but a very great part for human beings to explore. The solar system is very small in the Milkay. Still it has eight planets including th earth. The colsest planet to the earth is Mars and closest celestial body is the moon. Human beings creat spaceships to explore the space. Till now human beings had landed on the moon but there is still a long way to land on the Mars. It's so fantastc!
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