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Five interesting facts about the sky you probably didn't know...

1. The sky is blue during the day and black at night.
2. You can actually fly through the sky using a thing called an airplane.
3. We don't live in the sky because houses don't fly.
4. There are sometimes little white things in the sky called clouds.
5. You can see the sky at almost all times by looking directly up.
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Also, the government can control it with a thing called chemtrails