一项由美国研究者们发表在科学杂志上的研究，就阿波罗号从月球返回地球后，带来月球上许多氯的同位素进行了分析。

A study by US researchers, published in Science, analysed chlorine isotopes of the much-studied samples, brought to Earth by the Apollo space missions.

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第二项大发现是，萃取出来的 气体，同位素 组成与一般核反应器中所产生的大不相同。

The second epiphany was that the extracted gas had a significantly different isotopic makeup from what is usually produced in nuclear reactors.

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一项研究报告说，科学家可以通过分析象尾毛发的同位素成分从而读出一头象的多年饮食记录。

The dietary and movement history of individual animals can be studied using stable isotope records in animal tissues, providing insight into long-term ecological dynamics and a species niche.

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