title: Solar composition from the Genesis Discovery Mission.
abstract: Science results from the Genesis Mission illustrate the major advantages of sample return missions. (i) Important results not otherwise obtainable except by analysis in terrestrial laboratories: the isotopic compositions of O, N, and noble gases differ in the Sun from other inner solar system objects. The N isotopic composition is the same as that of Jupiter. Genesis has resolved discrepancies in the noble gas data from solar wind implanted in lunar soils. (ii) The most advanced analytical instruments have been applied to Genesis samples, including some developed specifically for the mission. (iii) The N isotope result has been replicated with four different instruments.
authors.affiliation: Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, USA. burnett@gps.caltech.edu
authors.forename: D S
authors.initials: DS
authors.lastname: Burnett
authors.forename: Genesis Science
authors.initials: GS
authors.lastname: Team
mesh_terms: D005118:Extraterrestrial Environment / Q000737:chemistry*; D018538:Jupiter; D009587:Nitrogen Isotopes / Q000032:analysis*; D005741:Noble Gases / Q000032:analysis; D010103:Oxygen Isotopes / Q000032:analysis; D016082:Solar System / Q000737:chemistry*; D013026:Space Flight
chemical_list: D009587:Nitrogen Isotopes; D005741:Noble Gases; D010103:Oxygen Isotopes