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Science 10 November 2000:
Vol. 290. no. 5494, pp. 1110 - 1111
DOI: 10.1126/science.290.5494.1110
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Perspectives

PLANETARY SCIENCE:
Nitrogen on the Moon

Richard H. Becker

The nitrogen isotopic compositions seen in lunar soils have long been a mystery to planetary scientists. As Becker discusses in his Perspective, new techniques, such as the depth profiling of mineral grains reported by Hashizume et al., are now shedding some light on the matter, allowing some theories to be excluded. Nevertheless, the relative role of the solar wind and other processes remains hotly debated.

The author is in the Physics Department, University of Minnesota, Minneapolis, MN 55455, USA. E-mail: rhbecker{at}tc.umn.edu

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Noble Gases in the Solar System.
R. Wieler (2002)
Reviews in Mineralogy and Geochemistry 47, 21-70
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Science. ISSN 0036-8075 (print), 1095-9203 (online)