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the sun
태양은 저리 뜨거운데....
왜 봄이 이리도 추울까요???ㅠㅠ
옷을 따땃하게 안 입고 다녀서 추운걸까요?
감기는 떠나질 않네요...ㅠㅠ
빨리 여름이 왔음 좋겠네요...저는... 그치만...태양에 불타버리는 지구는 생각하기 싫어요...ㅎㅎ
The sun is our nearest star, it is a big ball of gas.
The main gas is hydrogen which accounts for 90% of the sun materials.
This hydrogen creates all the sun's energy as a result gas explosions or nuclear reactions.
the energy takes a hundred thousand years to reach the sun's surface but It takes only 8 minutes to reach the earth.
The sun came into being around four a half billion years ago.
now we're just in the middle of the sun's age. The sun will last the same for another four and a half billion years.
The sun will change.
When it becomes a giant star, it will get hotter and the earth can't bear it.
Eventually the earth burn up!!!
27일 
