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Elementary-The Moon Is Older Than We Thought - ID: 187
Elementary-The Moon Is Older Than We Thought
It is the year 1972.
那是1972年。
People go to the moon.
人类登上了月球。
It is the Apollo 17 mission.
那是阿波罗17号任务。
Astronauts bring back some rocks.
宇航员带回了一些岩石。
Now, scientists look at tiny rocks called zircon.
现在，科学家研究一种叫做锆石的微小岩石。
Scientists say that the moon is older than we believe.
科学家们说月球比我们想象的要古老。
It is over 4 billion years old.
它有超过40亿年的历史。
A long time ago, something big hits Earth.
很久以前，一个巨大的物体撞击了地球。
This is how the moon starts to exist.
月亮就是这样开始存在的。
Scientists use a special method to know how old the rocks are.
科学家用一种特殊的方法来确定岩石的年龄。
It is important to know the moon’s age.
了解月球的年龄很重要。
It helps us understand our planet better.
它帮助我们更好地了解地球。
The moon helps Earth stay steady and good for living.
月球帮助地球保持稳定，适宜生命存在。
It also affects the weather in the oceans.
它还影响海洋的天气。
People like the moon and want to explore space.
人们喜欢月球，并想探索太空。
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