Abstract: Hibonite is a primary refractory phase occurring in many Ca-Al-rich inclusions (CAIs), typically with spinel…
Author: New NASA STI
Ion Microprobe Measurements of Comet Dust and Implications for Models of Oxygen Isotope Heterogeneity in the Solar System
Abstract: The oxygen isotopic compositions of anhydrous minerals in carbonaceous chondrites reflect mixing between a O-16-rich…
A New Type of Foreign Clast in A Polymict Ureilite: A CAI or AL-Rich Chondrule
Abstract: Introduction: Polymict ureilites are breccias interpreted to represent regolith formed on a ureilitic asteroid [1-3].…
Spectral and Temporal Properties of the Ultra-Luminous X-Ray Pulsar in M82 from 15 Years of Chandra Observations and Analysis of the Pulsed Emission Using NuSTAR
Abstract: The recent discovery by Bachetti et al. of a pulsar in M82 that can reach…
Isotopic Ratios of H, C, N, O, and S in Comets C2012 F6 (lemmon) and C2014 Q2 (lovejoy) * ** ***
Abstract: The apparition of bright comets C/2012 F6 (Lemmon) and C/2014 Q2 (Lovejoy) in March-April 2013…
Status of the Redesign of the Extravehicular Mobility Unit Airlock Cooling Loop Recovery Assembly
Abstract: During EVA (Extravehicular Activity) 23 aboard the ISS (International Space Station) on 07/16/2013 an episode…
Valence State Partitioning of Cr and V Between Olivine-Melt and Pyroxene-Melt in Experimental Basalts of a Eucritic Composition
Abstract: The partitioning of multivalent elements in basaltic systems can elucidate the oxygen fugacity (fO2) conditions…
Constraints on the Mineralogy of Gale Crater Mudstones from MSL SAM Evolved Water
Abstract: The Sample Analysis at Mars (SAM) and Chemistry and Mineralogy (CheMin) instruments on the Mars…
Space Weathering Experiments on Spacecraft Materials
Abstract: A project to investigate space environment effects on specific materials with interest to remote sensing…
A New Method of Absorption-Phase Nanotomography for 3D Observation of Mineral-Organic-Water Textiles and its Application to Pristine Carbonaceous Chondrites
Abstract: Pristine carbonaceous chondrites contain fine-grained matrix, which is composed largely of amorphous silicates, sub-micron silicate…