title: Planetary science. Nitrogen on the moon.
abstract: 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.
authors.affiliation: Physics Department, University of Minnesota, Minneapolis 55455, USA. rhbecker@tc.umn.edu
authors.forename: R H
authors.initials: RH
authors.lastname: Becker
mesh_terms: D001128:Argon; D005118:Extraterrestrial Environment; D007554:Isotopes; D016081:Moon; D009584:Nitrogen; D009587:Nitrogen Isotopes; D016082:Solar System
chemical_list: D007554:Isotopes; D009587:Nitrogen Isotopes; D001128:Argon; D009584:Nitrogen