英语翻译Moon may be closer to home than everIt is believed that

英语翻译
Moon may be closer to home than ever
It is believed that the moon was
formed around 4.5 billion years ago .But how did it get up there Scientists
say that the moon was formed when a giant rock ,about the size of mars ,
collided with Earth .This theory is known as the “giant impact theory”.
People used to believe that the moon was a part of the other colliding body
However it now seems that the moon could actually be made from a piece of Earth
that broke off .A team of scientists at Washington University in St .Louis is
closer than ever to solving the mystery by comparing moon rocks to Earth
material.
Scientists looked at rocks collected by astronauts during trips
to the moon .They studied a chemical element called zinc that was lacking in
moon rock.It was discovered that the remaining zinc was strangely formed,
suggesting the moon went through some kind of evaporation.
The zinc
isotopes on the moon were different to how they are on Earth .Isotopes are
different forms of a chemical element .A heavy isotope is isotope with larger
quality.The moon rocks showed a higher amount of heavy zinc isotopes and fewer
light zinc isotopes .Apart from this ,the moon rocks were quite similar to Earth
rocks .
“What we found is that the depletion {of lighter isotopes} of zinc
is probably due to evaporation,” said Frederic Moynier,an assistant professor
at the Washington University in St .Louis ,US.It is understood that only a
giant impact would be able to create the heat needed to make this happen .It
seems the moon might not be so alien after
all.
By Hugh
Lanley,
21st Century Teens staff

可能有些小错误,请多多包涵
月亮可能离家更近
据认为,月亮
约4500000000年前形成的.但它是如何到达那里吗?科学家
说,月球是在一块巨大的岩石,大小约火星,
与地球相撞.这一理论被称为“大碰撞理论”.
过去人们认为月亮是其他部分碰撞体
不过现在看来,月亮实际上可能是由一块土
中断.华盛顿大学的一组科学家在圣.路易斯
比以往任何时候都更接近解决神秘的月球岩石地球比较
材料.
科学家调查采集的岩石的宇航员在旅行
到月球.他们研究了化学元素称为锌缺乏
月球岩石.结果发现,锌剩余出奇的形成,
这意味着月亮穿过一种蒸发.
锌
同位素在月球上是不同的,它们是如何在地球的同位素.
不同形式的化学元素.一个较大的重同位素同位素
质量.月球岩石表现出较高的大量锌同位素少
光锌同位素.除此之外,月球岩石相当类似地球
岩石.
“我们的发现是枯竭的轻同位素} {锌
可能是由于蒸发,”弗里德里克说moynier,助理教授
在华盛顿大学在圣.路易斯,美国.据了解,只有一个
巨大的影响,将能够创造所需的热量使它发生.
看上去月亮不可能如此的外星人后
所有的.
休米
中情局总部兰利,
第二十一世纪的青少年工作人员