Creation and evolution of the moon, '달의 생성과 진화'

How about watching this video which was made by NASA? It shows for only 3 minutes about creation and evolution of the moon that it was started by a fragment of celestial bodies and became a satellite. Nasa explained how the moon went through intense change, such as many collisions with asteroids, for 4.5 billion years. That's why there are hundreds of thousands of craters on the surface of the moon. I also think it so amazing to see the evolution of the moon for a shot time sitting at home. http://www.youtube.com/embed/UIKmSQqp8wY NASA에 의해 만들어진 이 동영상을 보는 것은 어떤가요? 그 동영상은 달이 천체의 파편에서 한 개의 위성이 되기까지 오직 3분 동안에 달의 생성과 진화를 보여주고 있어요. 나사는 달이 45억년 동안 많은 소행성 충돌과 같은 격렬한 변화를 겪었다고 설명했어요. 그래서 달 표면에는 수백만 개의 운석구덩이들이 있어요. 저는 집에서 짧은 시간 동안에 달의 진화를 볼 수 있다는 것 또한 놀라운 일이라고 생각해요.

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