Jessica Barnes

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Journals/Publications

• Barnes, J. (2025). Abundant ammonia and nitrogen-rich soluble organic matter in samples from asteroid (101955) Bennu. Nature Astronomy, 9(Issue 2). doi:10.1038/s41550-024-02472-9
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  Organic matter in meteorites reveals clues about early Solar System chemistry and the origin of molecules important to life, but terrestrial exposure complicates interpretation. Samples returned from the B-type asteroid Bennu by the Origins, Spectral Interpretation, Resource Identification, and Security–Regolith Explorer mission enabled us to study pristine carbonaceous astromaterial without uncontrolled exposure to Earth’s biosphere. Here we show that Bennu samples are volatile rich, with more carbon, nitrogen and ammonia than samples from asteroid Ryugu and most meteorites. Nitrogen-15 isotopic enrichments indicate that ammonia and other N-containing soluble molecules formed in a cold molecular cloud or the outer protoplanetary disk. We detected amino acids (including 14 of the 20 used in terrestrial biology), amines, formaldehyde, carboxylic acids, polycyclic aromatic hydrocarbons and N-heterocycles (including all five nucleobases found in DNA and RNA), along with ~10,000 N-bearing chemical species. All chiral non-protein amino acids were racemic or nearly so, implying that terrestrial life’s left-handed chirality may not be due to bias in prebiotic molecules delivered by impacts. The relative abundances of amino acids and other soluble organics suggest formation and alteration by low-temperature reactions, possibly in NH3-rich fluids. Bennu’s parent asteroid developed in or accreted ices from a reservoir in the outer Solar System where ammonia ice was stable.
• Barnes, J. (2025). An evaporite sequence from ancient brine recorded in Bennu samples. Nature, 637(Issue 8048). doi:10.1038/s41586-024-08495-6
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  Evaporation or freezing of water-rich fluids with dilute concentrations of dissolved salts can produce brines, as observed in closed basins on Earth1 and detected by remote sensing on icy bodies in the outer Solar System2,3. The mineralogical evolution of these brines is well understood in regard to terrestrial environments4, but poorly constrained for extraterrestrial systems owing to a lack of direct sampling. Here we report the occurrence of salt minerals in samples of the asteroid (101955) Bennu returned by the OSIRIS-REx mission5. These include sodium-bearing phosphates and sodium-rich carbonates, sulfates, chlorides and fluorides formed during evaporation of a late-stage brine that existed early in the history of Bennu’s parent body. Discovery of diverse salts would not be possible without mission sample return and careful curation and storage, because these decompose with prolonged exposure to Earth’s atmosphere. Similar brines probably still occur in the interior of icy bodies Ceres and Enceladus, as indicated by spectra or measurement of sodium carbonate on the surface or in plumes2,3.
• Barnes, J. (2025). An overview of the petrography and petrology of particles from aggregate sample from asteroid Bennu. Meteoritics and Planetary Science, 60(Issue 5). doi:10.1111/maps.14335
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  The OSIRIS-REx mission returned a sample of regolith from the carbonaceous asteroid Bennu in September 2023. We present preliminary in situ investigations of the petrology and petrography of selected particles ranging in size from 0.5 to 3 mm. Using a combination of optical and electron beam techniques, we investigate whole specimens and polished sections belonging to morphologically and visually distinct categories of particles. We find that morphological differences in the particles are reflective of petrographic and petrologic differences, leading to the conclusion that we have at least two distinct major lithologies in the bulk sample. Our findings support predictions from remote sensing, suggesting that the morphological differences observed in the boulder population of Bennu correspond to petrologic differences. Our data provide insight into the geologic activity on Bennu's parent body and the petrographic framework needed to contextualize the detailed analyses of this pristine asteroidal material.
• Barnes, J. (2025). Mineralogical evidence for hydrothermal alteration of Bennu samples. Nature Geoscience, 18(Issue 9). doi:10.1038/s41561-025-01741-0
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  Samples of asteroid (101955) Bennu delivered by the OSIRIS-REx mission offer the opportunity to study pristine planetary materials unchanged by exposure to the terrestrial environment. Here we use a combination of X-ray diffraction and various electron microscopy techniques to explore the detailed mineralogy of Bennu samples and determine the alteration history of the planetesimal protolith from which they originated. The samples consist largely of hydrated sheet-silicate minerals, namely nanoscale serpentine and saponite of varied grain size, which are decorated with micro- to nanoscale Fe-sulfides, magnetite and carbonates. We observe sheet silicates parallel and normal to sulfide surfaces and as inclusions in sulfides; sulfur-rich veins transecting the sheet-silicate matrix; zoned carbonates and phosphates and sulfide and magnetite grains exhibiting embayment. The mineralogical evidence indicates alteration of accreted minerals by a fluid that evolved with time, leading to etching, dissolution and reprecipitation. Sulfide compositions indicate alteration at ~25 °C, similar to conditions inferred for asteroid (162173) Ryugu and Ivuna-type (CI) chondrite meteorites. The fluid probably evolved from neutral to alkaline, culminating with the precipitation of highly soluble salts. We conclude that Bennu’s protolith comprised mainly nanometre to micrometre silicates, with fewer chondrules and calcium–aluminium-rich inclusions than those of most chondrite groups.
• Barnes, J. (2025). Noble gases and nitrogen in material from asteroid Bennu. Meteoritics and Planetary Science. doi:10.1111/maps.70058
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  We report the elemental and isotopic abundances of all stable noble gases (helium, neon, argon, krypton, and xenon) in eight particles from asteroid Bennu returned by NASA's OSIRIS-REx mission. We also report nitrogen abundances and isotopic ratios that were analyzed alongside neon and argon in four additional Bennu particles. These analyses confirm the similarities of Bennu material with Ivuna-type carbonaceous (CI) chondrites. The nitrogen isotopic compositions show intra- and inter-particle variations, pointing to the heterogeneous distribution of various N-bearing phases, while the abundances of nitrogen are within the range of those measured in CIs. Noble gas data indicate mixing between Q-like noble gases (a ubiquitous noble gas component found in most classes of primitive meteorites, presumably formed by noble gas incorporation into organic materials within the ionized regions of the parent cloud or in the protoplanetary disk) and various presolar components originally hosted by refractory grains that survived the high enthalpy birth of the solar system. The noble gases also include secondary contributions of three types: (i) noble gas isotopes produced by radioactivity, (ii) solar wind implantation, mostly identified in the light noble gas (He and Ne) isotopic compositions, and (iii) cosmogenic noble gases produced by interaction with high-energy cosmic rays, permitting us to estimate how long fresh surfaces were irradiated. We find that cosmic ray exposure (CRE) durations of Bennu material vary mostly between 1 and 3 Ma. These CRE ages are consistent with (i) radionuclide studies suggesting surface exposure for 2–7 Ma, (ii) small crater retention ages of 1.6–2.2 Ma, and (iii) the 1.75 ± 0.75 million years that Bennu is estimated to have been dynamically decoupled from the asteroid belt. In contrast to CRE ages, we find a maximum duration of solar wind irradiation of ≤100,000 a, in agreement with exposure duration of
• Barnes, J. (2025). Rare Phosphides and Nitrides in Igneous Clasts within Aqueously Altered Chondrites. Planetary Science Journal, 6(Issue 5). doi:10.3847/psj/adce00
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  Chondritic meteorites and their components provide us with the means to investigate the conditions and processes in the early solar system, including the delivery of bio-essential elements, such as phosphorus, to the early Earth. In this work, we report on three additional identifications of the rare phosphide mineral andreyivanovite (FeCrP) and the first identifications of the related phosphide allabogdanite ((Fe,Ni)2P) and the nitride carlsbergite (CrN) in carbonaceous chondrites. We investigated multiple clusters of individual clasts in the C2-ungrouped chondrites Tarda and Tagish Lake and a single clast bearing andreyivanovite in the CM2 chondrite Moapa Valley, more than doubling the previously known extraterrestrial occurrences of this mineral. In all three meteorites, andreyivanovite was identified in distinct clasts as elongated lathes set in a groundmass of phyllosilicate minerals. The related phosphide allabogdanite and the Cr-nitride carlsbergite, both of which are found in iron meteorites, were identified in association with andreyivanovite in Tarda, providing further evidence that andreyivanovite and its host clasts in meteorites originally formed by solidification from a melted precursor and survived subsequent aqueous alteration that formed the phyllosilicate groundmasses. Furthermore, the difficulty of detecting allabogdanite and andreyivanovite without dedicated surveys, combined with the high abundance of andreyivanovite-bearing clasts observed in Tarda and Tagish Lake, suggests that andreyivanovite may be more common than previously thought and may be an important phase in the delivery of phosphorus to the early Earth.
• Barnes, J. (2025). Two Slowly Cooled and Chemically Diverse Basalt Clasts Identified in ANGSA Core 73001. Journal of Geophysical Research: Planets, 130(Issue 9). doi:10.1029/2025je009113
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  The Apollo 17 mission returned a double drive tube, 73001/73002, which was opened after ∼50 years and made available to the community through the Apollo Next Generation Sample Analysis (ANGSA) program. Here, we investigate the petrogenesis of two basalt clasts separated from the 73001 core, samples 73001,1095B and 73001,1234B. During the preliminary examination by NASA Curation using X-ray computed tomography, these clasts were categorized as high-Ti and low-Ti basalt clasts, respectively. Our subsequent investigation confirms a high-Ti affinity for 73001,1095B, but very low-Ti (VLT) affinity for 73001,1234B. We compare 73001,1095B to other high-Ti samples and show that the basalt represents a Type1B basalt. Based on the sample's low vesicularity in 3D, coarse-grained mineralogy in 2D and 3D, and complex exsolution features, this high-Ti basalt likely cooled slowly in the thermally insulated core of a lava flow. As VLT basalts are rare or undersampled in the lunar sample collection, the investigation of 73001,1234B with 3D techniques represents the first of its kind and offers an opportunity to more robustly understand the volcanic histories of VLT lavas. We observed low vesicularity in 3D, coarse-grained mineralogy, and coarse pyroxene exsolution in the VLT basalt in agreement with previous studies suggesting that VLT basalts likely represent samples from the slowest cooled lava flows on the lunar surface, or from a shallow intrusive body. We show from the combination of 2D and 3D studies applied to small returned samples lacking geologic context that a comprehensive interpretation of their crystallization histories can be obtained.
• Barnes, J., Nguyen, A., Abernethy, F., Bajo, K., Bekaert, D., Bloch, E., Brennecka, G., Busemann, H., Cowpe, J., Crowther, S., Ek, M., Fawcett, L., Fehr, M., Franchi, I., F{\"uri}, E., Gilmour, J., Grady, M., Greenwood, R., Haenecour, P., , Kawasaki, N., et al. (2025). The variety and origin of materials accreted by Bennu's parent asteroid. Nature Astronomy, 9, 1785-1802.
• Joy, K., Barnes, J. J., Che, X., & Jolliff, B. (2025). It's Not Just a Phase: Over 50 Years of Lunar Sample Science. Elements, 21(5), 327-332.
• Nguyen, A. N., Seifert, L. B., Shimizu, K., Thomas-Keprta, K., Le, L., Keller, L. P., Clemett, S. J., Rahman, Z., Barnes, J. J., Connolly, H. C., & Lauretta, D. S. (2025). Abundant supernova dust and heterogeneous aqueous alteration revealed by stardust in two lithologies of asteroid Bennu. Nature Astronomy, 9, 1812-1820.
• Kunert, N., Antier, S., Nedora, V., Bulla, M., Pang, P., Anand, S., Coughlin, M., Tews, I., Barnes, J., Hussenot-Desenonges, T. .., Healy, B., Laz, T., Pilloix, M., Kiendrebeogo, W., & Dietrich, T. (2024). Bayesian model selection for GRB 211211A through multiwavelength analyses. \mnras, 527(2), 3900-3911.
• Lauretta, D. S., Connolly, H. C., Aebersold, J. E., Alexander, C., Ballouz, R., Barnes, J. J., Bates, H. C., Bennett, C. A., Blanche, L., Blumenfeld, E. H., Clemett, S. J., Cody, G. D., DellaGiustina, D. N., Dworkin, J. P., Eckley, S. A., Foustoukos, D. I., Franchi, I. A., Glavin, D. P., Greenwood, R. C., , Haenecour, P., et al. (2024). Asteroid (101955) Bennu in the laboratory: Properties of the sample collected by OSIRIS-REx. \maps, 59(9), 2453-2486.
• Ramsey, S. R., Ostwald, A. M., Udry, A., O'Neal, E., Day, J. M., Wilbur, Z., Barnes, J. J., & Griffin, S. (2024). Northwest Africa 13669, a reequilibrated nakhlite from a previously unsampled portion of the nakhlite igneous complex. Meteoritics & Planetary Science, 59(1), 134--170.
• Ramsey, S. R., Ostwald, A. M., Udry, A., O'Neal, E., Day, J. M., Wilbur, Z., Barnes, J. J., & Griffin, S. (2024). Northwest Africa 13669, a reequilibrated nakhlite from a previously unsampled portion of the nakhlite igneous complex. \maps, 59(1), 134-170.
• Saxey, D. W., Fougerouse, D., Dimitriou, D., Barnes, J. J., Rickard, W. D., Timms, N. E., Jourdan, F., Reddy, S. M., Bland, P. A., Ireland, T. R., Nguyen, A., Connolly, H. C., & Lauretta, D. S. (2024). Geochemical Quantification of Olivine Minerals by Atom Probe Tomography. Microscopy and Microanalysis, 30, ozae044.032.
• Shearer}, C., McCubbin, F., Eckley, S., Simon, S., Meshik, A., McDonald, F., Schmitt, H., Zeigler, R., Gross, J., Mitchell, J., Krysher, C., Morris, R., Parai, R., Jolliff, B., Gillis-Davis, J., Joy, K., Bell, S., Lucey, P., Sun, L., , Sharp, Z., et al. (2024). Apollo Next Generation Sample Analysis (ANGSA): an Apollo Participating Scientist Program to Prepare the Lunar Sample Community for Artemis. \ssr, 220(6), 62.
• Stadermann, A., Erickson, T., Seifert, L., Chang, Y., Zeszut, Z., Zega, T., Michels, Z., & Barnes, J. (2024). A diversity of temperature and pressure conditions recorded by zircon within suevite from Ries crater, Germany. \maps, 59(12), 3322-3339.
• Varnam, M., Hamilton, C. W., Aleinov, I., & Barnes, J. J. (2024). Composition and speciation of volcanic volatiles on the Moon. Icarus, 116009.
• Varnam, M., Hamilton, C. W., Aleinov, I., & Barnes, J. J. (2024). Composition and speciation of volcanic volatiles on the Moon. \icarus, 413, 116009.
• Wilbur, Z. E., McCoy, T. J., Corrigan, C. M., Barnes, J. J., Brown, S. V., & Udry, A. (2024). The formation of volatile-bearing djerfisherite in reduced meteorites. \maps, 59(9), 2373-2387.
• Barrett, T. J., Robinson, K. L., Barnes, J. J., Jeffrey Taylor, G., Nagashima, K., Huss, G. R., Franchi, I. A., Anand, M., & Kring, D. A. (2023). Deciphering the origin(s) of H and Cl in Apollo 15 quartz monzodiorites: Evidence for multiple processes and reservoirs. \gca, 358, 192-206.
• Dauphas, N., Russell, S., Beaty, D., Thiessen, F., Barnes, J., Bonal, L., Bridges, J., Bristow, T., Eiler, J., Ferriere, L., Fornaro, T., Gattacceca, J., Hoffman, B., Javaux, E., Kleine, T., McSween, H., Prasad, M., Rampe, L., Schmidt, M., , Schoene, B., et al. (2023). Science Priorities for the Extraction of the Solid MSR Samples from their Sample Tubes. arXiv e-prints, arXiv:2301.04694.
• McCubbin, F. M., Barnes, J. J., Ni, P., Hui, H., Klima, R. L., Burney, D., Day, J. M., Magna, T., Boyce, J. W., Tart{\`ese}, R., Kaaden, K., Steenstra, E., Elardo, S. M., Zeigler, R. A., Anand, M., & Liu, Y. (2023). Endogenous Lunar Volatiles. Reviews in Mineralogy and Geochemistry, 89(1), 729-786.
• McCubbin, F. M., Lewis, J. A., Barnes, J. J., Boyce, J. W., Gross, J., McCanta, M. C., Srinivasan, P., Anzures, B. A., Lunning, N. G., Elardo, S. M., Keller, L. P., Prissel, T. C., & Agee, C. B. (2023). On the origin of fluorine-poor apatite in chondrite parent bodies. American Mineralogist, 108(7), 1185-1200.
• Stadermann, A. C., Barnes, J. J., Erickson, T. M., Prissel, T. C., & Michels, Z. D. (2023). Evidence for Extrusive Mg-Suite Magmatism on the Moon? Fine-Grained Magnesian Clasts in an Apollo 16 Impact Melt Breccia. Journal of Geophysical Research (Planets), 128(8), e2022JE007728.
• Wilbur, Z., Barnes, J., Eckley, S., Ong, I., Brounce, M., Crow, C., Erickson, T., Kent, J., Boyce, J., Mosenfelder, J., Hahn, T., McCubbin, F., & Zega, T. (2023). Volatiles, vesicles, and vugs: Unraveling the magmatic and eruptive histories of Steno crater basalts. \maps, 58(11), 1600-1628.
• Wilbur, Z., McCoy, T., Corrigan, C., & Barnes, J. (2023). Vapor Phase Metasomatism on the Aubrite Parent Body Evidenced by the Volatile-Bearing Sulfide Djerfisherite. Microscopy and Microanalysis, 29, 830-831.
• Schatz, H., Becerril, R. A., Best, A., Brown, E., Chatziioannou, K., Chipps, K., Deibel, C., Ezzeddine, R., Galloway, D., Hansen, C., Herwig, F., Ji, A., Lugaro, M., Meisel, Z., Norman, D., Read, J., Roberts, L., Spyrou, A., Tews, I., , Timmes, F., et al. (2022). Horizons: nuclear astrophysics in the 2020s and beyond. Journal of Physics G Nuclear Physics, 49(11), 110502.
• Stadermann, A. C., Jolliff, B. L., Krawczynski, M. J., Hamilton, C. W., & Barnes, J. J. (2022). Analysis and experimental investigation of Apollo sample 12032,366-18, a chemically evolved basalt from the Moon. \maps, 57(4), 794-816.
• Wilbur, Z. E., Udry, A., MCCubbin, F. M., Kaaden, K. E., DeFelice, C., Ziegler, K., Ross, D. K., MCCoy, T. J., Gross, J., Barnes, J. J., Dygert, N., Zeigler, R. A., Turrin, B. D., & MCCoy, C. (2022). The effects of highly reduced magmatism revealed through aubrites. \maps, 57(7), 1387-1420.
• McCubbin, F. M., Lewis, J. A., Barnes, J. J., Elardo, S. M., & Boyce, J. W. (2021). The abundances of F, Cl, and H$_2$O in eucrites: Implications for the origin of volatile depletion in the asteroid 4 Vesta. \gca, 314, 270-293.
• Brounce, M., Boyce, J., Barnes, J., & McCubbin, F. (2020). Sulfur in the Apollo Lunar Basalts and Implications for Future Sample-Return Missions. Elements Magazine, 361-362.
• McCubbin, F., & Barnes, J. (2020). The chlorine-isotopic composition of lunar KREEP from magnesian-suite troctolite 76535.. American Mineralogist Letters.
• Barnes, J. J., Franchi, I. A., McCubbin, F. M., & Anand, M. (2019). Multiple reservoirs of volatiles in the Moon revealed by the isotopic composition of chlorine in lunar basalts. Geochimica et Cosmochimica Acta, 266, 144-162.
• Barrett, T., Barnes, J., Anand, M., Franchi, I., Greenwood, R., Charlier, B., Zhao, X., Moynier, F., & Grady, M. (2019). Investigating magmatic processes in the early Solar System using the Cl isotopic systematics of eucrites. Geochimica et Cosmochimica Acta, 266, 582-597.
• Hayes, A., Ye, P., Loy, D., Muralidharan, K., Potter, B., & Barnes, J. (2019). Additive Manufacturing of Lunar Mineral-Based Composites. LPI Contributions, 2152, 5009.
• McCubbin, F. M., & Barnes, J. J. (2019). Origin and abundances of H2O in the terrestrial planets, Moon, and asteroids. Earth and Planetary Science Letters, 526, 115771.
• Peslier, A., Hervig, R., Yang, S., Humayun, M., Barnes, J., Irving, A., & Brandon, A. (2019). Determination of the water content and D/H ratio of the martian mantle by unraveling degassing and crystallization effects in nakhlites. Geochimica et Cosmochimica Acta, 266, 382-415. doi:https://doi.org/10.1016/j.gca.2019.04.023
• Boyce, J. W., Kanee, S. A., McCubbin, F. M., Barnes, J. J., Bricker, H., & Treiman, A. H. (2018). Early loss, fractionation, and redistribution of chlorine in the Moon as revealed by the low-Ti lunar mare basalt suite. EARTH AND PLANETARY SCIENCE LETTERS, 500, 205-214.
• Potts, N. J., Barnes, J. J., Tartese, R., Franchi, I. A., & Anand, M. (2018). Chlorine isotopic compositions of apatite in Apollo 14 rocks: Evidence for widespread vapor-phase metasomatism on the lunar nearside similar to 4 billion years ago. GEOCHIMICA ET COSMOCHIMICA ACTA, 230, 46-59.
• Barnes, J. J., Kring, D. A., Tartese, R., Franchi, I. A., Anand, M., & Russell, S. S. (2016). An asteroidal origin for water in the Moon. NATURE COMMUNICATIONS, 7.
• Barnes, J. J., Tartese, R., Anand, M., McCubbin, F. M., Neal, C. R., & Franchi, I. A. (2016). Early degassing of lunar urKREEP by crust-breaching impact(s). EARTH AND PLANETARY SCIENCE LETTERS, 447, 84-94.
• Barrett, T., Barnes, J., Tartese, R., Anand, M., Franchi, I., Greenwood, R., Charlier, B., & Grady, M. (2016). The abundance and isotopic composition of water in eucrites. Meteoritics and Planetary Science, 51, 1110-1124. doi:https://doi.org/10.1111/maps.12649
• Robinson, K. L., Barnes, J. J., Nagashima, K., Thomen, A., Franchi, I. A., Huss, G. R., Anand, M., & Taylor, G. J. (2016). Water in evolved lunar rocks: Evidence for multiple reservoirs. GEOCHIMICA ET COSMOCHIMICA ACTA, 188, 244-260.
• Snape, J. F., Nemchin, A. A., Bellucci, J. J., Whitehouse, M. J., Tartese, R., Barnes, J. J., Anand, M., Crawford, I. A., & Joy, K. H. (2016). Lunar basalt chronology, mantle differentiation and implications for determining the age of the Moon. EARTH AND PLANETARY SCIENCE LETTERS, 451, 149-158.
• McCubbin, F. M., Kaaden, K., Tartese, R., Klima, R. L., Liu, Y., Mortimer, J., Barnes, J. J., Shearer, C. K., Treiman, A. H., Lawrence, D. J., Elardo, S. M., Hurley, D. M., Boyce, J. W., & Anand, M. (2015). Magmatic volatiles (H, C, N, F, S, Cl) in the lunar mantle, crust, and regolith: Abundances, distributions, processes, and reservoirs. AMERICAN MINERALOGIST, 100(8-9), 1668-1707.

Proceedings Publications

• Barnes, J. (2025). Geotechnical and scientific characterization of lunar regolith for the purposes of lunar construction using regolith filled bags. In AIAA AVIATION FORUM AND ASCEND, 2025.
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  As part of the LUNAR BRICS (Lunar Robotically Based Regolith Incorporated Construction) pathfinder mission, consideration was given to complementary scientific and geotechnical sensors and instrumentation. While the ultimate goal of the mission is to demonstrate lunar construction using regolith filled bags, it is imperative to study the physical and thermal properties of the surface and sub-surface so as to better understand both the bag filler material, as well as the supporting foundation. Several science and geotechnical goals, and their supporting instrumentation, are presented in meeting these objectives.
• Barnes, J., Nguyen, A., Abernethy, F., Bajo, K., Bekaert, D., Bloch, E., Brennecka, G., Busemann, H., Cowpe, J., Crowther, S., Ek, M., Fawcett, L., Fehr, M., Franchi, I., Furi, E., Gilmour, J., Grady, M., Greenwood, R., Haenecour, P., , Kawasaki, N., et al. (2025, oct). A Geochemical and Isotopic View of the Formation and Evolution of Bennu's Parent Body. In LPI Contributions, 3094.
• Cody, G., Tu, N., Barnes, J., Connolly, H., & Lauretta, D. (2025, oct). Insight into Bennu's phosphates via 31P Solid-State Nuclear Magnetic Resonance (NMR) Spectroscopy. In LPI Contributions, 3094.
• Foustoukos, D., Alexander, C., Cody, G., Glavin, D., Dworkin, J., Barnes, J., Nguyen, A., Connolly, H., & Lauretta, D. (2025, oct). Ammonia in the Asteroid Bennu: Abundance and Isotopic (N, H) Composition. In LPI Contributions, 3094.
• Hamilton, V., Cloutis, E., Milliken, R., Haenecour, P., Golish, D., Domanik, K., McCoy, T., Keller, L., Simon, A., Kaplan, H., Goodrich, C., Sandford, S., Appelin, D., Hiroi, T., Hill, D., Lunning, N., McCubbin, F., Eckley, S., Snead, C., , Blumenfeld, E., et al. (2025, oct). Spectral Properties of Bennu Samples in the Context of Remote Sensing. In LPI Contributions, 3094.
• Liu, X., Lodders, K., Koefoed, P., Glavin, D., Dworkin, J., McLain, H., Haenecour, P., Barnes, J., Nguyen, A., Wang, K., Connolly, H., & Lauretta, D. (2025, oct). Elemental Mobility and Aqueous Alteration on Asteroid Bennu: Insights from Leaching Experiments. In LPI Contributions, 3094.
• Tkalcec, B., Baert, T., Herthogs, J., Tack, P., Vekemans, B., Libourel, G., Portail, M., Guigoz, V., Barnes, J., Di Michiel, M., Falkenberg, G., Garrevoet, J., Connolly, H., Lauretta, D., Vincze, L., & Brenker, F. (2025, oct). Rare-Earth Element Distribution in Cross-Cutting Veins in a Bennu Rock Fragment: Comparison with Bennu and Ryugu Apatites. In LPI Contributions, 3094.
• Wang, K., Lodders, K., Koefoed, P., Wimpenny, J., Render, J., Shollenberger, Q., Kruijer, T., Brennecka, G., Glavin, D., Dworkin, J., Alexander, C., Barrat, J., Haenecour, P., Barnes, J., Nguyen, A., Connolly, H., & Lauretta, D. (2025, oct). Revisiting the Solar System Bulk Composition Through Asteroid Bennu Samples. In LPI Contributions, 3094.
• Baird, M., Barnes, J., Wilbur, Z., Kerrison, N., Domanik, K., & Hill, D. (2024, mar). Assessing the Lithological Diversity of Lunar Meteorite Northwest Africa (NWA) 10203. In 55th Lunar and Planetary Science Conference, 3040.
• Barnes, J. (2024, jan). ASP 2022: A Virtual Conference. In Astronomical Society of the Pacific Conference Series, 537.
• Barnes, J., Haenecour, P., Smith, L., Ong, I., Wilbur, Z., Jourdan, F., King, A., McCoy, T., Russell, S., Keller, L., Timms, N., Rickard, W., Bland, P., Saxey, D., Reddy, S., Ireland, T., Yurimoto, H., Chaves, L., Bloch, E., , Franchi, I., et al. (2024, mar). Coordinated Analysis of Phosphates in Samples from Asteroid (101955) Bennu. In 55th Lunar and Planetary Science Conference, 3040.
• Barnes, J., Haenecour, P., Smith, L., Ong, I., Wilbur, Z., Jourdan, F., King, A., McCoy, T., Salge, T., Russell, S., Keller, L., Timms, N., Rickard, W., Bland, P., Saxey, D., Reddy, S., Ireland, T., Yurimoto, H., Bloch, E., , Franchi, I., et al. (2024, jul). Characterization of Phosphates in Samples Returned from Asteroid Bennu. In LPI Contributions, 3036.
• Busemann, H., Krietsch, D., Maden, C., Barnes, J., Nguyen, A., Connolly, H., & Lauretta, D. (2024, jul). Noble Gases in Samples Returned from Asteroids Ryugu and Bennu. In LPI Contributions, 3036.
• Chaves, L., Haenecour, P., Barnes, J., Hill, D., Zega, T., McCoy, T., Russell, S., Connolly, H., & Lauretta, D. (2024, jul). Evaluating the Chemical Composition of Sulfides from Asteroid Bennu: Preparation for Sulfur Isotopic Analysis. In LPI Contributions, 3036.
• Chaves, L., Haenecour, P., Barnes, J., Smith, L., Ong, I., Wilbur, Z., Bloch, E., Zega, T., Thompson, M., Keller, L., King, A., McCoy, T., Russell, S., Hill, D., Connolly, H., & Lauretta, D. (2024, mar). Characterization of Sulfides in Samples from Asteroid Bennu. In 55th Lunar and Planetary Science Conference, 3040.
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• Anand, S., Andreoni, I., Goldstein, D., Kasliwal, M., Ahumada, T., Barnes, J., Bloom, J., Bulla, M., Cenko, S., Cooke, J., Coughlin, M., Nugent, P., & Singer, L. (2021, sep). DECam-GROWTH Search for the Faint and Distant Binary Neutron Star and Neutron Star-Black Hole Mergers in O3a. In Revista Mexicana de Astronomia y Astrofisica Conference Series, 53.
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• Barnes, J., Schwartz, S., & Jacobson, S. (2021, jun). The Role of Gravitational Collapse in Planetesimal Formation. In AAS/Division of Dynamical Astronomy Meeting, 53.
• Barnes, J., Wilbur, Z., & Domanik, K. (2021, aug). Phosphate Chemistry in Brachinites and Brachinite Like Meteorites. In 84th Annual Meeting of the Meteoritical Society, 84.
• Bennett, C., Haenecour, P., Crombie, K., Fitzgibbon, M., Ferro, T., Hammond, D., McDonough, E., Westermann, M., Barnes, J., Connolly, H., & Lauretta, D. (2021, nov). An Overview of the OSIRIS-REx Sample Analysis Micro-Information System (SAMIS). In LPI Contributions, 2654.
• Brounce}, M., Barnes, J., Boyce, J., Wilbur, Z., McCubbin, F., Crow, C., Mosenfelder, J., Zega, T., & Team, {. S. (2021, mar). The Oxidation State of Sulfur in Apollo Samples 71035 and 71055. In 52nd Lunar and Planetary Science Conference.
• Haenecour, P., Bennett, C., Crombie, M., Fitzgibbon, M., Ferro, A., Hammond, D., McDonough, E., Westermann, M., Barnes, J., Connolly, H., & Lauretta, D. (2021, aug). The OSIRIS-REx Sample Analysis Micro Information System (SAMIS). In 84th Annual Meeting of the Meteoritical Society, 84.
• Hurley, D., Blewett, D. T., Cahill, J., Chabot, N., Greenhagen, B., Hibbitts, C., Klima, R., Lawrence, D., Mandt, K., Nunez, J. I., Patterson, W., Prem, P., Stickle, A., Deutsch, A., Delitsky, M., Flahaut, J., Sowers, G., Sefton-Nash, E., Brisset, J., , Zacny, K., et al. (2021, may). Mission to Characterize Volatiles in Old, Cold, Permanently Shadowed Regions on the Moon. In Bulletin of the American Astronomical Society, 53.
• Mainzer, A., Abell, P., Bannister, M. T., Barbee, B., Barnes, J., Bell, I., Benner, L., Betts, B., Bose, M., Bottke, W., Britt, D., Brozovi{\'c}, M., Bruckner, M., Busch, M. W., Carey, S., Castillo-Rogez, J. .., Chesley, J., Christensen, E., Chodas, P., , Cotto-Figueroa, D. .., et al. (2021, may). The Future of Planetary Defense in the Era of Advanced Surveys. In Bulletin of the American Astronomical Society, 53.
• McCubbin, F., Allton, J. H., Barnes, J. J., Calaway, M. J., Corrigan, C. M., Filiberto, J., Fries, M. D., Gross, J., Harrington, A. D., Herd, C. D., Hutzler, A., Ishii, H. A., McCoy, T. J., McKeegan, K., Mitchell, J. L., Nittler, L. R., Regberg, A. B., Righter, K., Snead, C. J., , Stroud, R., et al. (2021, may). Advanced Curation of Astromaterials for Planetary Science Over the Next Decade. In Bulletin of the American Astronomical Society, 53.
• McCubbin}, F., Shearer, C., Barnes, J., Burgess, K., Cohen, B., Curran, N., Dyar, M., Elsila, J., Gross, J., Mitchell, J., Sehlke, A., Walroth, R., Welten, K., Zeigler, R., & Team, {. S. (2021, mar). The ANGSA Program: A Low-Cost Lunar ``Sample Rreturn Mission.'' An Overview and Progress Over the Last 18 Months. In 52nd Lunar and Planetary Science Conference.
• Miller, K. E., Theiling, B., Hofmann, A. E., Castillo-Rogez, J., Neveu, M., Hosseini, S., Barnes, J., Kleer, K., Barrett, T. J., Franz, H. B., Glein, C. R., House, C. H., Blase, R. C., Libardoni, M. J., Spilker, L. J., Choukroun, M., & Drouin, B. J. (2021, may). The value of CHONS isotopic measurements of major compounds as probes of planetary origin, evolution, and habitability. In Bulletin of the American Astronomical Society, 53.
• Morin, S., Barnes, J., Wilbur, Z., Stadermann, A., Domanik, K., & McCubbin, F. (2021, aug). Assessing the Volatile Inventory of Basaltic Fragments in Luna Soils. In 84th Annual Meeting of the Meteoritical Society, 84.
• Stadermann, A., Barnes, J., Erickson, T., & Zega, T. (2021, aug). Apollo Sample 64455: Petrologic and Geochemical Characterization of a Glass-Coated Impact Melt Rock. In 84th Annual Meeting of the Meteoritical Society, 84.
• Stadermann, A., Jolliff, B., Krawczynski, M., Hamilton, C., & Barnes, J. (2021, mar). Apollo Sample 12032,366-18: Characterization and Experimental Investigation of a Chemically Evolved Lunar Basalt. In 52nd Lunar and Planetary Science Conference.
• Stroud, R., Barnes, J., Nittler, L., Gross, J., Davidson, J., Corrigan, C., Ishii, H., Cook, J. E., Filiberto, J., Lawrence, S., Zolensky, M., Schrader, D., Cohen, B., & McKeegan, K. (2021, may). Strategic Investment in Laboratory Analysis of Planetary Materials as Ground Truth for Solar System Exploration. In Bulletin of the American Astronomical Society, 53.
• Thompson, M., Barnes, J., Blewett, D., Cahill, J., Denevi, B., Donaldson, H. K., Gillis-Davis, J., Glotch, T., Jha, D., Kramer, G., Kumari, N., Legett, C., Moriarty, D., Retherford, K., Shukla, S., Shusterman, M., & Varatherajan, I. (2021, may). Space Weathering Across the Solar System: Lessons from the Moon and Outstanding Questions. In Bulletin of the American Astronomical Society, 53.
• Wilbur, Z., Barnes, J., Eckley, S., & Zeigler, R. (2021, aug). Investigating the Petrogenesis and Eruption Histories of Apollo 15 and Apollo 17 Basalts. In 84th Annual Meeting of the Meteoritical Society, 84.
• Wilbur}, Z., Barnes, J., Eckley, S., Boyce, J., Brounce, M., Crow, C., Mosenfelder, J., Zega, T., & Team, {. S. (2021, mar). Investigating the Magmatic History of Volatiles in Apollo 17 Basalts, Apollo Next Generation Sample Analysis. In 52nd Lunar and Planetary Science Conference.
• Mane, P., Nguyen, A., Barnes, J., Needham, A., Messenger, S., Ross, D., & Simon, J. (2019, Jul). Oxygen Isotopic Imaging of a Hibonite-Grossite-Rich Inclusion from the Miller Range (MIL) 090019 CO3 Chondrite. In 82nd Annual Meeting of The Meteoritical Society, 82.