Issue Date: August 9, 2010
Chlorine Record Suggests The Moon Was Always Dry
A study of chlorine isotopes in moon rocks brought back from the Apollo missions indicates that Earth’s satellite has always been devoid of water (Science, DOI: 10.1126/science.1192606). This finding contradicts recent studies suggesting that the moon might contain significant amounts of water in its interior (C&EN, June 21, page 27). Zachary D. Sharp of the University of New Mexico and colleagues used mass spectrometry to study the range of ratios of . . .
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