We report high precision SIMS oxygen three isotope analyses of 36 chondrules from some
of the least equilibrated LL3 chondrites, and find systematic variations in oxygen isotope …

Preliminary analysis of the oxygen isotopic composition of the solar wind recorded by the
Genesis spacecraft suggests that the Sun is 16 O-rich compared to most chondrules, fine …

It is believed that 26 Al, a short-lived (t 1/2= 0.73 Ma) and now extinct radionuclide, was
uniformly distributed in the nascent solar system (SS) with the initial 26 Al/27 Al ratio of∼ …

Recent developments in analytical instrumentation have led to revolutionary discoveries in
cosmochemistry. Instrumental advances have been made along two lines:(i) increase in …

Chondrite groups can be distinguished on the basis of their abundances of refractory
lithophile elements (RLE). These abundances are, in part, functions of the mass fraction of …

The NASA Johnson Space Center Astromaterials Acquisition and Curation Office has the
unique responsibility to curate NASA's extraterrestrial samples–from past and forthcoming …

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 …

Injection of material from a core-collapse supernova into the solar system's already-formed
disk is one proposed mechanism for producing the short-lived radionuclides, such as 26 Al …

We report concentrations and isotopic compositions of He, Ne, and Ar measured with high
spatial resolution along a radial traverse of a silicon carbide (SiC) quadrant of the Genesis …

We have measured the isotopic composition and fluence of solar‐wind nitrogen in a
diamond‐like‐carbon collector from the Genesis B/C array. The B and C collector arrays on …