Our Universe (Space Encyclopedia)

Our universe is incredibly vast. It is much bigger than you can imagine! It is composed of living Or..

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Planets (Space Encyclopedia)

How many planets are there in the Solar system? Why don't the same planets support life? What makes ..

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Satellites (Space Encyclopedia)

There are many nature satellites in the Solar system. However, there were no artificals until the mi..

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Stars (Space Encyclopedia)

How are stars formed? How do they die? Are stars of different kinds? Which stars are the most famous..

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