Troilite and its assemblages from enstatite-rich meteorites at the nanoscale
Noemi Mészárosová, Roman Skála, Mariana Klementová, Lukáš Palatinus, Jozef Veselý, Petr Harcuba MAPS, Version of Record online: 09 November 2026 LINK “A transmission electron microscopy (TEM) study of four troilite grains from enstatite chondrites (Y-691,…
Variably shock-compacted chondrites: Deformation–thermal histories, large differences in mineral deformation response, and implications for lithificationOPEN ACCESS
Alex M. Ruzicka, Jon M. Friedrich, Richard C. Hugo, Robert J. Macke, Daniel Sheikh, Melinda Hutson MAPS, Version of Record online: 09 November 2026 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Eight different H, L, and LL…
Protoplanetary disk evolution inferred from oxygen isotopes in anhydrous interplanetary dust particlesOPEN ACCESS
Birgit Schulz, Christian Vollmer, Peter Hoppe, Jan Leitner, Lindsay P. Keller MAPS, Version of Record online: 08 November 2026 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Eight anhydrous interplanetary dust particles (IDPs) were analyzed for their oxygen…
Soluble elemental inventories in samples from asteroid Bennu and CI chondrites
Xuanyu Liu, Katharina Lodders, Piers Koefoed, Daniel P. Glavin, Jason P. Dworkin, Hannah L. McLain, Pierre Haenecour, Jessica J. Barnes, Ann N. Nguyen, Sara S. Russell, Timothy J. McCoy, Kun Wang, Harold C. Connolly Jr.,…
Lunar impact history recorded by melt beads from Apollo 17 regolith 76501OPEN ACCESS
Alexander A. Nemchin, Marc D. Norman, Martin J. Whitehouse, Evgenia Salin, Tao Long, Nicholas E. Timms, Xiaochao Che, Tao Luo MAPS, Version of Record online: 08 November 2026 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Rapidly quenched…
Non-destructive deep-UV Raman mapping of C ≡ N-bearing functional-group bands in Tagish Lake meteorite: Implications for a new primitive class of meteorites
Josephine C. Di Maurizio, Elizabeth A. Lymer, Michael G. Daly, Kim Tait, Haley M. Sapers, Joseph Razzell Hollis, Emmanuel A. Lalla Icarus, available online 5 November 2026 LINK “Highlights “The detection of C ≡ N functional groups…
Insights into the Micromechanical Properties of Different Planetary Bodies: Nanoindentation Studies of Martian Olivines and PyroxenesOPEN ACCESS
Pau Grèbol-Tomàs, Jordi Ibáñez-Insa, Josep Maria Trigo-Rodríguez, Abigail Jiménez-Franco, Lysa Chizmadia and Jordi Sort The Planetary Science Journal, Volume 7, Number 11 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “This study systematically evaluated the micro/nanomechanical properties of…
Blue Halite records a prolonged space exposure history of the meteorite Sidi El Habib 001OPEN ACCESS
Chenan Pan, Xiaohui Fu, Wenshuo Mao, Fei Su, Jin Li, Jiahao Chu, Jiang Zhang & Zhongchen Wu npj Space Exploration, Volume 2, article number 42, Published: 01 November 2026 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Rare…
Characterization of Northwest Africa 6410 L6 ordinary chondrite using scanning electron microscopy, X-ray diffraction and Mössbauer spectroscopy
A. A. Maksimova, E. V. Petrova, A. V. Chukin, G. Varga, Z. Dankházi, M. Gritsevich, E. Kuzmann, Z. Homonnay, M. I. Oshtrakh MAPS, Version of Record online: 01 November 2026 LINK “Ordinary chondrites preserve important…
He+ Irradiation of the Murchison Meteorite: Insights Into the Effect of Solar Wind Irradiation on Different Types of Organic Matter
Futing Yin, Hong Tang, Tian Zhang, Tingfeng Cheng, Xiongyao Li, Hong Jin, Yuanyun Wen, Xiangliang Pan, Jianzhong Liu JGR Planets, First Published: 31 October 2026 LINK “Key Points “Organic matter (OM) in C-type asteroids provides…
A Martian meteorite that formed ≳4.1 billion years ago samples Mars’ early crust and mantleOPEN ACCESS
Yang Liu, Lee M. Saper, Elizabeth Ann Bell, Chi Ma, Haoyu Li, Jinping Hu, Yunbin Guan, Hayward Melton, Alicia M. Cruz-Uribe, Teng Ee Yap, François L.H. Tissot, Claire E. Bucholz, Karen Ziegler, and Carl B….
Ultrarefractory inclusion from the H3 ordinary chondrite Chug Chug 072
Konstantin M. Ryazantsev , Marina A. Ivanova, Alexander N. Krot, Kazu Nagashima, Cyril A. Lorenz, Vasiliy D. Shcherbakov Geochemistry, Available online 26 October 2026 LINK “We describe an ultrarefractory Ca,Al-rich inclusion (UR CAI) CC072–1 in…
A Survivor from the Margins: Hypatia Stone and the Hidden Diversity of Solar System SolidsOPEN ACCESS
Luca Bindi, Marco Morelli & Marco A. G. Andreoli Space Science Reviews, Published: 26 October 2026 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “The Hypatia stone represents a unique and transformative case study in cosmochemistry, challenging fundamental…
Best Bulk Bennu (B³): Elemental compositions of aggregate samples from asteroid BennuOPEN ACCESS
K. Wang, K. Lodders, P. Koefoed, M. Broussard, J. Wimpenny, J. Render, Q.R. Shollenberger, T.S. Kruijer, G.A. Brennecka, M. Amini, V. Lai, D. Weis, K.C. Welten, K. Nishiizumi, D.P. Glavin, J.P. Dworkin, C.M.O’D. Alexander, J.-A….
Fluorine in the late fluids of asteroid RyuguOPEN ACCESS
R. Conconi, C. Le Guillou, S. Laforet, M. Marinova, H. Leroux, L. Jossé, A. Aléon-Toppani, Z. Dionnet, R. Brunetto, S. Bernard, B. Dazas, A. Miyake, T. Noguchi Geochemical Perspectives Letters, V. 42, Published 22 October…
Trace element distribution in coarse-grained Ca-Al-rich inclusions by femtosecond LA-ICP-MS: implications for U-Pb chronologyOPEN ACCESS
Merel E. Onderwater, Elishevah M.M.E. van Kooten, Glenn J. MacPherson, Alexander N. Krot, Martin Bizzarro Geochimica et Cosmochimica Acta, In Press, Journal Pre-proof, Available online 24 October 2026 LINK + PDF (OPEN ACCESS) “Calcium-aluminium-rich inclusions…
A PCA-GMM-based adaptive probabilistic boundary model for chemical-group classification of ordinary chondrites
Xing Liu, Zhipeng Xia, Bingkui Miao, Cheng Xu Icarus, published: 21 October 2026 LINK “Highlights “The chemical-group classification of ordinary chondrites is primarily based on the fayalite content of olivine (Fa) and the ferrosilite content…
Mineralogical analysis of Vigarano group NWA 5508 carbonaceous chondrite by SEM-EDS, micro-Raman, and FTIR spectroscopy
CEREN KAMIL, OZAN UNSALAN, CISEM ALTUNAYAR-UNSALAN & MICHAEL ZOLENSKY Journal of Astrophysics and Astronomy, Published: 22 October 2026 LINK “NWA 5508 was characterized by SEM-EDS, micro-Raman, and infrared (IR) reflectance spectroscopy. SEM-EDS analysis identified Mg,…
Xenoliths in meteorites: Insights into the dynamics of material exchange between asteroidsOPEN ACCESS
J. Gattacceca, B. Devouard, L. Bonal, Y. Marrocchi, A. Greshake, R. Tartèse, M. Gounelle, D. AuYang, C. Sonzogni, M. Hutson, A. Irving, C. Agee, T. Shisseh, A. Love, V. Vidal, D. Borschneck, S. A. Eckley,…
Comments on the publication by Rachel S. Kirby, Penelope L. King, and Andrew G. Tomkins “A statistical investigation into relationships between the IIE irons and the ordinary, F and ‘HH’ chondrites.”Meteoritics & Planetary Science 60, Nr 10, 2376–2400
Marina A. Ivanova, Michael K. Weisberg MAPS, Version of Record online: 20 October 2026 LINK “These comments are devoted to our observations based on recently reviewing publications regarding reduced ungrouped chondrites (F-, HH, and others)….
Constraining shock ages and Sr-Os isotope geochemistry of brachinites and brachinite-like achondrites
Robert W. Nicklas, Aratz Beranoaguirre, Dylan M. Seal, James M. D. Day, Ethan F. Baxter, Anthony B. Love MAPS, Version of Record online: 20 October 2026 LINK “Brachinites and brachinite-like achondrites record melting processes at…
Mineralogy of C1, C2, and CM-like clasts in achondritic and chondritic meteorite breccias
Subhasmita Swain, Enrico Mugnaioli, Anna Musolino, Markus Patzek, Beda Hofmann, Surya Snata Rout MAPS, Version of Record online: 20 October 2026 LINK “Volatile-rich xenolithic clasts in different meteoritic breccias represent primitive solar system material. Here,…
Nature and evolution of Yamato-type carbonaceous chondrites: Clues from Ti-minerals in Dhofar 1988
Shu-Zhou Wang, Ai-Cheng Zhang, Tian-Ran Du, Jia-Ni Chen, Yuan-Yun Wen MAPS, Version of Record online: 20 October 2026 LINK “Yamato-type (CY) carbonaceous chondrites are a group of meteorites that experienced both intense aqueous alteration and…
Reconstructing the aqueous environment of the Ryugu parent body through the speciation of multiple elementsOPEN ACCESS
Takahiro Kawai, Keisuke Fukushi, Tomohiro Ohno, Hiroki Suga, Masayuki Uesugi, Ayu Takemoto, Akiko Yamaguchi, Takaaki Itai, Yuta Ijichi, Shohei Yamashita, Yasuhiro Niwa, Ryoichi Nakada, Mizuho Koike, Hideto Yoshida, Masaki Oura, Megumi Matsumoto, Tomohiro Usui, Yoko…
Correlative Microstructural Analysis of a Weathered Nantan Meteorite FragmentOPEN ACCESS
Graeme J. Francolini, Brendan V. Dyck, Paul Mack, Ben Britton PDF (OPEN ACCESS) “The weathering of iron-rich phases within meteorites is a multi-stage process that significantly alters the microstructure and chemical composition based both on…
Assessing the analytical capabilities of handheld laser-induced breakdown spectroscopy (hLIBS) on corroded iron objects of possible meteoritic originOPEN ACCESS
Giorgio S. Senesi, Albert Jambon, Olga De Pascale, Lahcen Ouknine, Hassan Nachit, Fouad Khiri, Abderrahmane Ibhi MAPS, Version of Record online: 14 October 2026 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Despite meteorites having been recognized as…
Thermal history of an amoeboid olivine aggregate in the early solar nebulaOPEN ACCESS
M. Kimura, N. Imae, M. Komatsu, A. Yamaguchi MAPS, Version of Record online: 14 October 2026 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Carbonaceous chondrites commonly contain amoeboid olivine aggregates (AOAs). Here, we investigated an AOA in…
Tracing the main belt origins of S-complex near-Earth objects: From space mission targets to meteorite sourcesOPEN ACCESS
P. N. Simon, P. Vernazza,M. Marsset, M. Brož, R. P. Binzel, F. DeMeo, C. A. Thomas, L. Jorda Accepted for publication in A&A, 7 October 2026 PDF (OPEN ACCESS) “Context. Space missions to near-Earth objects…
Reply to comments on the publication “A statistical investigation into the relationships between the IIE irons and the ordinary, F and “HH” chondrites.”Meteoritics & Planetary Science 60, 2376–2400
R. S. Kirby, P. L. King, A. G. Tomkins MAPS, Version of Record online: 05 October 2026 LINK A statistical investigation into the relationships between the IIE irons and the ordinary, F and “HH” chondrites….
Presolar silicon carbide grains from a CO3 meteoriteOPEN ACCESS
Emilie T. Dunham, Michael R. Savina, Ming-Chang Liu, Gregory A. Brennecka, Peter K. Weber, Julie M. Korsmeyer, Andrew M. Davis, Philipp R. Heck, Thomas Stephan, Maximilian Ehrenfels & Autumn G. Roberts The European Physical Journal…
Chiral discrimination of amino acids in meteorite and desert soil extracts via single-molecule nanogap conductanceOPEN ACCESS
Takahito Ohshiro, Yuki Komoto, Takayuki Takaai, Takeshi Yoshida, Takashi Washio, José L. Ramírez-Colón, Hannah L. Mclain, Daniel Duzdevich, Maria T. Zuber, Christopher E. Carr & Masateru Taniguchi Nature Communications, Volume 17, Article number: 10274 LINK…
Prebiotic organic compounds in asteroid Bennu and Ryugu reflect divergent parent body historiesOPEN ACCESS
Angel Mojarro, José C. Aponte, Daniel P. Glavin, Jamie E. Elsila, Jason P. Dworkin, Harold C. Connolly Geochimica et Cosmochimica Acta, In Press, Journal Pre-proof, Available online 4 October 2026 LINK + PDF (OPEN ACCESS)…
What do acoustic signatures reveal about asteroid thermal breakdown processes?
Nicole Latsia, Georgios Tsirvoulis, Erika Kaufmann, Heikki Suhonen, Mikael Granvik, Johan Borg, Axel Hagermann Icarus, Available online 2 October 2026 LINK “Highlights “Regolith blocks on asteroid surfaces evolve through several processes, including thermal fatigue: repeated…
Iron Isotope Fractionation on Vesta Driven by Magma Ocean Process
Jinting Kang, Zhengyu Hou, Haochen Yang, Xue Tang, Weibiao Hsu, Fang Huang JGR Planets, Volume 131, Issue 10, First Published: 1 October 2026 LINK “Key Points “Magma oceans represent a pivotal stage in the early…
A Reassessment of the Lithium Isotope Composition of the Moon Using Mare Basalt, Mg-Suite and Anorthosite Meteorites
Heng-Ci Tian, Wei Yang, Huijuan Zhang, Jingyan Cai, Yangting Lin, Keqing Zong, Qi Liu, Feixiang Liu, Caihong Gao, Maoyong He JGR Planets, Volume 131, Issue 10, First Published: 1 October 2026 LINK “To further constrain…
Chondrule size averaging in two and three dimensionsOPEN ACCESS
Emmanuel Jacquet Accepted to Meteoritics and Planetary Science PDF (OPEN ACCESS) Update (13 October 2026): MAPS, Version of Record online: 12 October 2026 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Chondrule sizes are an important discriminant of…
Oxygen isotope thermometry and composition of aqueous fluids within the parent body of asteroid (101955) BennuOPEN ACCESS
Gary R. Huss, Kazuhide Nagashima, Elena Dobrică, Alexander N. Krot, Gregory Cane, Zoe E. Wilbur, Timothy J. McCoy, Catherine M. Corrigan, Sara S. Russell, Jessica J. Barnes, Ann N. Nguyen, Harold C. Connolly Jr., Dante…
Nitrogen and intramolecular carbon isotopic measurements of β-alanine in samples from asteroid Bennu and the Murchison meteoriteOPEN ACCESS
Ophélie M. Mcintosh, Allison A. Baczynski, Cornelia Rasmussen, David W. Hoffman, Daniel P. Glavin, Jason P. Dworkin, Jamie E. Elsila, Christopher H. House, Katherine H. Freeman, Harold C. Connolly Jr & Dante S. Lauretta Communications…
Nucleosynthetic constraints on the origin of Bennu and CI-like asteroidsOPEN ACCESS
Maria Schönbächler, Mattias Ek, Manuela A. Fehr, Katarzyna M. Liszewska, Lara A. E. Meyer, Miriam Rüfenacht, James M. J. Ball, Paul Frossard, Jan Render, Quinn R. Shollenberger, Greg A. Brennecka, Thomas S. Kruijer, Josh Wimpenny,…
Nanoscale chemistry of magnetite framboids in the tarda meteorite: a proxy for fluid chemistry
B.J.K. Wilson, G.A. Arcuri, T. Casagrande, C.M. Andrei, B. Langelier, K.T. Tait, M.G. Daly Geochimica et Cosmochimica Acta, In Press, Journal Pre-proof, Available online 23 September 2026 LINK “Tarda is a C2-ungrouped carbonaceous chondrite that…
Meteoritic organic matter records primitive oxygen reservoirs of the solar system
Daniel R. Crocker, Conel M. O‘D. Alexander, Mark H. Thiemens, and David T. Johnston PNAS, 21 September, 2026 LINK “Unraveling the complex formation and alteration history for extraterrestrial organic matter is key to understanding the…
Differentiated inner solar system debris as a major component of some carbonaceous chondritesOPEN ACCESS
Ling-Zhi Hu, Maxence Regnault, Philipp Gleißner, Ninja Braukmüller, Ashley J. King, Anne Lindner, Harry Becker Earth and Planetary Science Letters, Available online 7 September 2026 LINK + PDF (OPEN ACCESS) “Highlights “Carbonaceous chondrites (CCs) exhibit…
A non-Vestan, eucrite-like pyroxene grain from asteroid (101955) BennuOPEN ACCESS
Zoë E. Wilbur, Timothy J. McCoy, Catherine M. Corrigan, Kazuhide Nagashima, Gary R. Huss, L. Robert Wardell, Timothy Gooding, Timothy R. Rose, Victoria E. Hamilton, Jessica J. Barnes, Kevin J. Walsh, Sara S. Russell, Daniella…
Heterogenous 48Ca isotopic anomalies in a diverse suite of refractory inclusions, insights into the primordial Solar SystemOPEN ACCESS
Justin I. Simon, Rosalind M.G. Armytage Earth and Planetary Science Letters, Available online 7 September 2026 LINK + PDF (OPEN ACCESS) “Highlights “Thermal ionization mass spectrometry measurements of non-mass-dependent calcium isotope effects in calcium-aluminum-rich refractory…
Adsorption of Meteoritic Sugars on Forsterite Surfaces: A First-Principles StudyOPEN ACCESS
Abu Asaduzzaman ACS Earth and Space Chemistry, 17 September 2026 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Sugar-related organic molecules identified in carbonaceous meteorites provide key insight into the extraterrestrial inventory of prebiotic compounds. Here, density functional…
Planetesimal compositions governed by aerodynamic sorting from the onset of Solar System formation
Damanveer S. Grewal, Zhongtian Zhang & Joanna Drążkowska Nature Astronomy, Published: 18 September 2026 LINK “Carbonaceous (CC) chondrites from the outer Solar System are mixtures of fine-grained, volatile-rich matrix and thermally sintered, volatile-poor chondrules. Among…
Probing the Taxonomic Diversity of the Small Near-Earth Object PopulationOPEN ACCESS
Andy J. López-Oquendo, David E. Trilling, Michael Mommert and Michaël Marsset The Planetary Science Journal, Volume 7, Number 9, published: 17 September 2026 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Small near-Earth objects (NEOs) represent the immediate…
Direct Molecular-scale Insight into Soluble Organic Matter from the Murchison and Aguas Zarcas Meteorites Enabled by 21T FT-ICR MS and Single-molecule HR-AFM ImagingOPEN ACCESS
Joseph W. Frye-Jones, Martha L. Aguilera, Percy Zahl, Alan G. Marshall and Ryan P. Rodgers The Planetary Science Journal, Volume 7, Number 9 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Organic material in the Murchison and Aguas…
Zeolite formation via aqueous alteration of calcium-aluminum-rich inclusions on the CR and CV parent asteroids
M. A. Ivanova, S. N. Britvin, A. N. Krot, K. Nagashima, N. G. Zinovieva MAPS, Version of Record online: 14 September 2026 LINK “We describe here zeolites and zeolite-like phases in Ca,Al-inclusions (CAIs) from Kaidun…
The iron mineralogy of Bennu samples: similarities and variations among CI chondritic materialsOPEN ACCESS
Kana Amano, Jean-Christophe Viennet, Pierre Beck, Sergey Yaroslavtsev, Dimitrios Bessas, Aleksandr Chumakov, Jean-Philippe Celse, Ludovic Delbes, Tomoki Nakamura, Yuma Enokido, Kanako Sakamoto, Shogo Tachibana, Mathieu Roskosz Geochimica et Cosmochimica Acta, Available online 11 September 2026…
The Dingle Dell (L6) meteorite fall: In-depth characterization of an L chondrite with some LL-like properties originating from the inner main belt
Seamus L. Anderson, Gretchen K. Benedix, Lucy V. Forman, Luke Daly, Belinda Godel, Lionel Esteban, Matthias M.M. Meier, Colin Maden, Henner Busemann, Qing-Zhu Yin, Matthew E. Sanborn, Karen Ziegler, Jon M. Friedrich, Kees C. Welten,…
Complexity of baddeleyite microstructure and Pb-Pb age in lunar gabbroic breccias: implications for the NWA 773 Clan chronology
Liying Huang, Lee Francis White, Xuchao Zhao, Mahesh Anand, Muhammad Zeeshan Mughal, Yuchen Xu, Yang Liu, Yongliao Zou Geochimica et Cosmochimica Acta, in Press, Journal Pre-proof, Available online 9 September 2026 LINK “Baddeleyite (monoclinic-ZrO2) is…
Revisiting olivine-phyric shergottites: Pyroxene crystallization pressure and the role of undercoolingOPEN ACCESS
Roger H. Hewins, Brigitte Zanda, Arnaud Duverger MAPS, Version of Record online: 09 September 2026 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Shergottites are the most abundant meteorites from Mars and a major source of information on…
Photochemical effects of Mars-like UV irradiation on carboxylic acids in carbonaceous chondrites and expectations for abiotic background organics on MarsOPEN ACCESS
D. K. Buckner, J. C. Aponte, A. C. Schuerger, D. I. Foustoukos, F. Seguin, M. B. Wilhelm, G. Cooper, A. J. Williams MAPS, Version of Record online: 04 September 2026 LINK (OPEN ACCESS)PDF (OPEN ACCESS)…
Beyond the Urey-Craig diagram: a ternary framework for iron redox evolution during aqueous alteration of carbonaceous chondrites
Damanveer S. Grewal, Zhongtian Zhang Geochimica et Cosmochimica Acta, In Press, Journal Pre-proof, Available online 3 September 2026 LINK “Water-rock reactions during aqueous alteration were critical in establishing the redox state of early Solar System…
The log-logistic evolution of meteorite friability and implications for asteroid regolithOPEN ACCESS
Suraj Bhatt, Laurence A. J. Garvie, Desireé Cotto-Figueroa, Erik Asphaug & Christian G. Hoover Nature Communications Earth & Environment, Published: 01 September 2026 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Friability of meteorites, the tendency to crumble…
Textures of Chassignite meteorites: Clues to cumulate formation and early deformation processes on MarsOPEN ACCESS
N. Meunier-Mili, M.-A. Kaczmarek, M. Bystricky Geochimica et Cosmochimica Acta, In Press, Journal Pre-proof, Available online 1 September 2026 LINK + PDF (OPEN ACCESS) “Chassignite meteorites are martian achondrites that display a magmatic cumulate texture…
The NC-CC dichotomy in ruthenium isotopes: Implications for the origin of the late veneerOPEN ACCESS
Jonas Pape, Emily A. Worsham, Thorsten Kleine IcarusAvailable online 28 August 2026 LINK + PDF (OPEN ACCESS) “Highlights “High-precision mass-independent Ru isotope data for iron meteorites reveal that in three-isotope diagrams including the p-process Ru…
From orbit to ground: Pre-impact meteorite strewn field predictions for imminent impactors and meteorite recoveryOPEN ACCESS
Anna Moscati, Marco Fenucci, Laura Faggioli, Marco Micheli, Francisco Ocaña, Juan Luis Cano Icarus, In Press, Journal Pre-proof, Available online 28 August 2026 LINK (OPEN ACCESS) PDF (OPEN ACCESS) “Highlights “The flux of meteoroids reaching…
MicroRaman Spectroscopy of Carbonaceous Chondrites to Constrain Peak Metamorphic Temperature and MineralogyOPEN ACCESS
Lorraine Roselló Del Valle, Kerri L. Donaldson Hanna, Bertrand Chazallon, Cristian Fosca, Claire Pirim and Christopher Bennett The Planetary Science Journal, Volume 7, Number 8, published: 28 August 2026 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “We…
Ammonium-bearing clays and multiple nitrogen species linked to the late-stage brines of Ryugu’s parent body
Toru Matsumoto, Hayato Yuzawa, Mizuho Koike, Yoko Kebukawa, Takaaki Noguchi, Toru Yada, Hiroki Suga, Toshiaki Ina, Hiroshi Sakuma, Yohei Shirose, Yuki Kitamura, Yohei Igami & Akira Miyake Nature Astronomy, Published: 27 August 2026 LINK “Nitrogen-bearing…
Mercury’s crustal magnetization indicates a stronger ancient dynamoOPEN ACCESS
Isaac S. Narrett, Benjamin P. Weiss, Sarah C. Steele, and John B. Biersteker PNAS, August 25, 202 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Mercury is the only terrestrial planet in the solar system other than Earth…
Hydrogen in nominally anhydrous minerals from equilibrated ordinary chondrites and implications for the water budget of their parent bodies
S. Desikamani, L.D. Peterson, M.E. Newcombe, C.M.O’D. Alexander, J. Wang, R.D. Ash, S.G. Nielsen, P.M. Piccoli, E.S. Bullock Geochimica et Cosmochimica Acta, In Press, Journal Pre-proof, Available online 25 August 2026 LINK “Nucleosynthetic isotope signatures…
A surviving pink spinel records an early aluminous melt on the ureilite parent bodyOPEN ACCESS
Yaozhu Li, Phil J.A. McCausland, Roberta L. Flemming, Noriko T. Kita, Carsten Detlefs Preprint submitted to Earth and Planetary Science Letter, 25 August 2026 PDF (OPEN ACCESS) “Ureilites are ultramafic achondrites interpreted as fragments of…
Impact fragmentation of carbonaceous meteorites with pre-existing large cracksOPEN ACCESS
Tatsuhiro Michikami, Axel Hagermann, Michihiko Nakamura, Satoshi Okumura, Harumasa Kano, Kouta Okaniwa, Hiromi Yoshida, Rei Kanemaru, Sunao Hasegawa Monthly Notices of the Royal Astronomical Society, stag1598Published: 22 August 2026 LINK + PDF (OPEN ACCESS) “Carbonaceous…
Paleomagnetic evidence for a nebular magnetic field from calcium-aluminum-rich inclusionsOPEN ACCESS
Cauê S. Borlina, Benjamin P. Weiss, Xue-Ning Bai, Po-Yen Tung, Richard J. Harrison, Elias N. Mansbach, Nilanjan Chatterjee, François L. H. Tissot, and Kevin D. McKeegan PNAS, Vol. 123 | No. 36, 24 August 2026…
Origin of nucleosynthetic isotope variability in the NC reservoir: evidence from Ti, Cr, and Mo isotopesOPEN ACCESS
Elias Wölfer, Christoph Burkhardt, Gerrit Budde, Christian A. Jansen, Jonas Pape, Thorsten Kleine Geochimica et Cosmochimica Acta, In Press, Journal Pre-proof, Available online 19 August 2026 LINK + PDF (OPEN ACCESS) “Nucleosynthetic isotope anomalies allow…
Constraints on Magma Self-oxidation in Angrites and the Role of Parent-body SizeOPEN ACCESS
Hideharu Kuwahara, Damanveer S. Grewal and Kyusei Tsuno The Planetary Science Journal, Volume 7, Number 8 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Earth, and potentially Venus, formed through giant impacts involving early-formed planetesimals and planetary embryos…
The dust-rich, gas-depleted protosolar disk as the birthplace of chondrulesOPEN ACCESS
Sota Arakawa, Hidekazu Tanaka, Toshihiko Kadono, Takayuki Ushikubo, Makiko Nagasawa, Hiroshi Kobayashi PDF (OPEN ACCESS), Draft version, August 18, 2026 “Chondrules are the primary components of primitive meteorites known as chondrites, and understanding their formation…
Microstructural Analysis of Lunar Dunite Clast From Meteorite NWA 11421 and Physical Constraints on Excavation of Upper Lunar Mantle Material
I. Spring, T. Erickson, A. Mallik, A. Roy, A. Treiman JGR Planets, First Published: 16 August 2026 LINK “Key Points “Lunar dunite clast, D1, from lunar meteorite NWA 11421 represents the first lunar sample that…
Bolide Light Curve Systematics from 75 Recovered MeteoritesOPEN ACCESS
Peter Jenniskens, Stuart Pilorz, Darrel Robertson, Eric C. Stern MAPS, Version of Record online: 16 August 2026 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “How does the energy deposition profile (light curve), deceleration, and penetration depth in…
Ryugu and Bennu preserve primordial isotopic heterogeneity absent from the meteorite recordOPEN ACCESS
Martin Bizzarro, Martin Schiller, Elishevah van Kooten, Isaac J. Onyett, Wei Dai, Yuki Masuda, James N. Connelly, Frédéric Moynier, Tetsuya Yokoyama, Maria Schönbächler, Jessica J. Barnes, Ann N. Nguyen, Harold C. Connolly Jr. & Dante…
Stellar Interpretation of Meteoritic Data and Plotting for Everyone (SIMPLE): Isotope Mixing Lines for Six Sets of Core-collapse Supernova ModelsOPEN ACCESS
Marco Pignatari, Mattias Ek, Georgy V. Makhatadze, Gábor G. Balázs, Lorenzo Roberti, James M. Ball, Borbála Cseh, Alessandro Chieffi, Chris Fryer, Falk Herwig The Astrophysical Journal, Volume 1007, Number 2, published: 14 August 2026 LINK…
Direct Detection of Hydrogen Reveals a New Macroscopic Crustal Water Reservoir on Early MarsOPEN ACCESS
Estrid Buhl Naver, Katrine Wulff Nikolajsen, Martin Sæbye Carøe, Domenico Battaglia, Jens Frydenvang, Martin Bizzarro, Jakob Sauer Jørgensen, Kim Lefmann, Anders Kaestner, David Christian Mannes, Phil Cook, Henrik Birkedal, Thorbjørn Erik Køppen Christensen, Innokenty Kantor,…
Dynamic Trajectory Analysis of Meteoroids Showing Minimal DecelerationOPEN ACCESS
Thomas Stevenson, Ellie Sansom, Hadrien Devillepoix, Maria Gritsevich, Anna Zappatini, Peter Jenniskens, Christopher Herd, Jonti Horner, Nick Moskovitz, Samantha Hemmelgarn, Luke Daly Accepted for publication in Publications of the Astronomical Society of Australia (PASA) PDF…
What Earth Erases: Weathering Diversity of Mineral Phases Formed in a Highly Reduced Environment Hosted in AubritesOPEN ACCESS
M. Kołodziej, B. Pieterek, G. Zieliński, K. Załęski, E. Coy JGR Planets, First Published: 12 August 2026 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Key Points “Meteorites serve as an exceptional source of insight into our planet…
Description and terrestrial ages of the Calama Area Meteorite Collection (Atacama Desert, Chile)OPEN ACCESS
Carine Sadaka, Jérôme Gattacceca, Florian Dumas, Régis Braucher, ASTER Team , Matthieu Gounelle, Dilyara Kuzina, Cyril Lorenz, Alexandre Corgne, Pierre Sempéré MAPS, Version of Record online: 10 August 2026 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “We…
The hydrogen isotopic composition and content of the ureilite parent body: constraints from new ungrouped achondritesOPEN ACCESS
B.G. Rider-Stokes, A. Stephant, M. Nottingham, J. Gamblin, e. . Füri, S.S. Russell, X. Zhao, M. Anand, M.J. Whitehouse, M.M. Grady Geochimica et Cosmochimica Acta, In Press, Journal Pre-proof, Available online 8 August 2026 LINK…
Genetic links between IIIE iron meteorites and the core of the HED parent asteroidOPEN ACCESS
Wenbo Xu, Renbiao Tao, Shijie Li, Xiaobin Cao, Deliang Wang, Dehan Shen, Yurun Wu, Yuhang Lu & Jintao Zhu Communications Earth & Environment, Published: 08 August 2026 PDF (OPEN ACCESS) “Rocky planets formed through the…
Minerals in Iron and Titanium Skeletal Textures in Nakhlites MIL 090030, MIL 090136, MIL 090032, and MIL 03346: Comparative Analysis With Terrestrial Analogues From Canary Islands, SpainOPEN ACCESS
Minerals in Iron and Titanium Skeletal Textures in Nakhlites MIL 090030, MIL 090136, MIL 090032, and MIL 03346: Comparative Analysis With Terrestrial Analogues From Canary Islands, Spain Leire Coloma, Fernando Alberquilla, Julene Aramendia, Gorka Arana,…
Magnetization records of terrestrial weathering in the Sericho pallasite
Ji-In Jung, Sophia Gaal, Sonia M. Tikoo, Ethan Lopes, Jonathan Mells, Dale H. Burns, Robert G. Hatfield MAPS, Version of Record online: 06 August 2026 LINK “Paleomagnetic investigations of pallasites are important for understanding the…
Ruamāhanga (prov.) meteorite fall (~ 73-75 g, OC) near Masterton / Whakaoriori, Greater Wellington Region, Wairarapa, North Island, Aotearoa / New Zealand at 10:26:02-07 (UTC) on 28 July 2026
Last update: 14 August 2026 (17:00 CEST) After ten days of searching at least six meteorites (e.g. 5 g, 8 g (Steve Wyn-Harris, 31 July), 9 g (3 August), 12 g (2 August) and 39…
Low-temperature reflectance spectra of meteorites: Implications for space missions
E. Caminiti, P. Beck, A. Wargnier, L. Bonal, B. Schmitt, T. Usui Icarus, In Press, Journal Pre-proof, Available online 4 August 2026 LINK “Highlights “The spectroscopic properties of airless bodies are influenced by the space…
Dynamo generation reveals redox conditions during formation of differentiated planetesimalsOPEN ACCESS
Hannah R. Sanderson, James F. J. Bryson, Claire I. O. Nichols Submitted to Nature Astronomy, 3 August 2026 PDF (OPEN ACCESS) “In the early Solar System, an isotopic dichotomy existed between non-carbonaceous (NC) and carbonaceous…
Reflectance spectroscopy (250–2500 nm) of an aggregate sample from asteroid (101955) BennuOPEN ACCESS
E.A. Cloutis, D.M. Applin, A.A. Simon, B.E. Clark, X.-D. Zou, V.E. Hamilton, R.E. Milliken, T. Hiroi, M.E. Zolensky, K.M. Peters, L.P. Keller, D.N. DellaGiustina, H.C. Connolly Jr, D.S. Lauretta IcarusAvailable online 3 August 2026, 117289…
A Fluid-Mediated Alteration Process on the Howardite Parent Asteroid Recorded by Pyroxene Decomposition to Fe–Ti–Cr Oxides and Amorphous Silica
Lilin Huang, Yanxue Wu, Riqiang Wen, Chunwen Huang, Chunmei Li, Jiangmin Ma JGR Planets, First published: 03 August 2026 LINK “In this study, we report amorphous silica dendrites in three eucritic pyroxene grains from a…
Nature, origin, and phosphorylation potential of the phosphorus/sulfur-bearing nanoscale multiphasic assemblages in the CM chondrites Murchison and MurrayOPEN ACCESS
Valentine Megevand, Sylvain Bernard, Corentin Le Guillou, Roberto Conconi, François Guyot MAPS, Version of Record online: 02 August 2026 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Carbonaceous chondrites contain phosphorus, whose speciation and thus history remain to…
Chondrule formation in the outer disk from the primary three-dimensional chemical composition of CM chondrulesOPEN ACCESS
Poula Eyðbjørnsdóttir, Anders Johansen, Elishevah van Kooten Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 2 August 2026 LINK + PDF (OPEN ACCESS) “Chondrules and their associated fine-grained rims (FGRs) record fundamental processes operating…
Size Constraints for the Pre-atmospheric Parent Bodies of Ordinary ChondritesOPEN ACCESS
Juan A. Sanchez, David C. Cantillo, Adam Battle, Miren Miranda, Benjamin N. L. Sharkey, Tanner S. Campbell, Rogerio Deienno, William F. Bottke, David Nesvorný and Vishnu Reddy The Planetary Science Journal, Volume 7, Number 7,…
Stardust as nucleation seeds for the earliest solids in the Solar SystemOPEN ACCESS
Ren T. C. Marquez, Bruce L. A. Charlier, and François L. H. Tissot Science Advances29 Jul 2026Vol 12, Issue 31 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Recent reports of extreme strontium-84 excesses in primitive Solar System…
Oxygen isotope variability in the IIIAB iron meteorites and their relationship to main group pallasitesOPEN ACCESS
R. J. Windmill, I. A. Franchi, X. Zhao, R. C. Greenwood, M. Anand MAPS, Version of Record online: 28 July 2026 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “The light element distribution in planetary cores and the…
Characterizing the Stannern-trend eucrite Berthoud: micro-Raman, FTIR, XRD, EDXRF, and petrographic approach
Ozan Unsalan, Irmak Ayvaz, Ceren Ertatis, Cisem Altunayar-Unsalan, Michael E. Zolensky, Osman Candan & Ceren Kamil Astrophysics and Space ScienceVolume 371, article number 79 LINK “This study aims to address the mineralogical and compositional complexities…
The first discovery of a shocked, metasomatised CV3 chondrule-fragment in a (Al,Cu)-bearing micrometeoriteOPEN ACCESS
Giovanna Agrosì, Paola Manzari, Daniela Mele, Johan Villeneuve, Tiziano Catelani, Mattew J. Genge, Luca Bindi MAPS, Version of Record online: 27 July 2026 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “We report the discovery of the second…
Crystallization of dmisteinbergite (hexagonal CaAl2Si2O8) from type B CAI analog meltOPEN ACCESS
Yasuaki Tsuruoka, Hideto Yoshida, Yuki Inoue, Daiki Yamamoto, Hiroyuki Kagi, Akira Miyake, Shogo Tachibana MAPS, Version of Record online: 27 July 2026 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Dmisteinbergite is a metastable polymorph of CaAl2Si2O8, which…
Rapid accretion of enstatite chondrite (EH)-like embryos as impactors for the proto-EarthOPEN ACCESS
Qiong Li, Wei Du, Jing Yang, Chuan Zhang, Di Yao, Keqing Zong, Feiyang Chen, Yonggang Wang & Yun Liu Communications Earth & Environment, Published: 25 July 2026 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Enstatite chondrites-like impactors…
The pre-disruption hydrogen budgets of the tafassite and brachinite parent bodies
Liam D. Peterson, Conel M. O’D. Alexander, Jianhua Wang, Emma S. Bullock, Anthony J. Irving, Sune G. Nielsen MAPS, Version of Record online: 22 July 2026 LINK “Recent evidence from primitive achondrites and achondrites suggests…
The Polana-Eulalia Complex with JWST NIRSpec: Connections to Bennu, Ryugu, and Outer Solar System BodiesOPEN ACCESS
Lucas McClure, Joshua Emery, Driss Takir, Julia de Leon, Mario de Pra, Brittany Harvison, Bryan Holler, Javier Licandro, Tania Le Pivert-Jolivet, Joseph Masiero, Noemi Pinilla-Alonso Accepted in PSJ PDF (OPEN ACCESS) Update (15 August 2026):…
The origin of Cretaceous-Palaeogene impactor revealed by nickel isotopesOPEN ACCESS
Georgy V. Makhatadze, Frédéric Moynier, Leslie-Anne Brun, Steven Goderis, Philippe Claeys, and Christian Koeberl Science Advances17 Jul 2026Vol 12, Issue 29 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Sixty-six million years ago, non-avian dinosaurs and other taxa…
Refractory inclusions in Bennu samples indicative of outer Solar System accretionOPEN ACCESS
Noriyuki Kawasaki, Toru Matsumoto, Sota Arakawa, Naoya Sakamoto, Ken-ichi Bajo, Sara S. Russell, Jessica J. Barnes, Ann N. Nguyen, Timothy J. McCoy, Pierre Haenecour, Hisayoshi Yurimoto, Harold C. Connolly Jr. & Dante S. Lauretta Nature…
The 40K-K dating system: 1. Improving data interpretation using new model calculationsOPEN ACCESS
Farshid Nozarian, Suzette Timmerman, Ingo Leya MAPS, Version of Record online: 16 July 2026 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “The 40K-K cosmic-ray exposure (CRE) dating system offers a promising method for determining exposure ages of…
Mechanisms of Vesicle Evolution in the Fusion Crust of the Martian Meteorite NWA 10645
Chunjie Cao, Duojun Wang, Kenan Han, Kewei Shen, Kexuan Zhang JGR Planets, First Published: 16 July 2026 LINK “Key Points “The vesicles of meteorite fusion crusts offer a key window into transient processes during atmospheric…
Rapidly evolving composition of nebular infall recorded by magnesium isotopes in refractory inclusions
Haoyu Li, Ren T. C. Marquez, Gerrit Budde, Haolan Tang, Alexander N. Krot, Marina A. Ivanova, Johan Villeneuve, and François L. H. Tissot PNAS, July 16, 2026, 123 (29) LINK “The 26Al-26Mg systematics in calcium–aluminum-rich…
First ‘Cockburn Island’ (prov.) meteorites of bolide above Cockburn Island, Ontario, Canada at ~00:13:54 UTC on 20 June 2026 found
Last update: 10 September 2026 (15:50 CEST) Meteorite searchers Dave Kenny from Vancover Island and Anton Clemens report having found two meteorites (probably ordinary chondrites, H chondrite?) of the bolide above Cockburn Island, Ontario, Canada…
Hillsborough (~1.35 kg, CM1/2) meteorite fall in Hillsborough, New Jersey, USA at 15:17:27.6 (UTC) on 16 July 2024
Shortly after 15:17:27.6 (UTC), at around 15:20 UTC, on 16 July 2024 a ~1.35-kg meteorite (CM1/2) fell through the roof of a house in Hillsborough, New Jersey, USA, somewhere near location 40°29’00.0″N, 74°35’00.0″W. The meteoroid…
Meteor over New York City: Brines in a primitive CM asteroidOPEN ACCESS
Peter Jenniskens*, Michael E. Zolensky, Austin Gordon, Jamie Gordon, Mike Hankey, Elizabeth A. Silber, Miro Ronac Giannone, Jangmi Han, Loan Le, Marc D. Fries, Karen Ziegler, Queenie H. S. Chan, Diptimayee Behera, Jonathan S. Watson,…
Mn-rich chondrule rims in CO3 chondrites: Implications for the composition of nebular dustOPEN ACCESS
Jillian Kirk, Myriam Telus, Pranvera Hyseni, Fatima Jorge-Chavez, Vanessa Mendoza, Steven J. Desch, Dale Burns, Steven Simon Icarus, In Press, Journal Pre-proof, Available online 14 July 2026 LINK (OPEN ACCESS) “Highlights “Chondrules are small igneous…
Isotopic imprints of late molecular cloud infall in the outer Solar SystemOPEN ACCESS
Elishevah van Kooten, Sebastian Sjørring Lodal, Isaac Onyett, Lasse Rasmus Pohlmann, Jean Bollard, Courtney Rundhaug, Martin Schiller & Martin Bizzarro Nature Astronomy, Published: 10 July 2026 LINK (OPEN ACCESS)PDF (OPEN ACCESS) We spotted the following…
Implantation of icy planetesimals into the main asteroid belt due to the growth and outward migration of giant planetsOPEN ACCESS
Tomoki Takeichi, Sei-ichiro Watanabe Icarus, In Press, Journal Pre-proof, Available online 9 July 2026 LINK + PDF (OPEN ACCESS) “Highlights “Samples returned from the C-type asteroid Ryugu suggest that its parent body formed beyond proto-Saturn…
Chondrite parent bodies as escaped satellites of proto-planetary embryosOPEN ACCESS
Harold F. Levison, Rogerio Deienno, Kevin J. Walsh, Brandon C. Johnson, Harold C. Connolly, Jr., Shigeru Wakita, and Robert E. Grimm Science Advances8 Jul 2026Vol 12, Issue 28 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Chondrites are…
Potassium isotopic compositions and exposure ages of evolved and silica-rich achondritesOPEN ACCESS
Z. Vaci, Z. Tian, P. Koefoed, M. Habermann, M. Humayun, K. Ziegler, H. Busemann, D. Krietsch, J. M. D. Day, K. Wang MAPS, Version of Record online: 07 July 2026 LINK (OPEN ACCESS)PDF (OPEN ACCESS)…
Cosmic Dust Flux During the Quaternary: The Record of Large Scoriaceous and Unmelted Micrometeorites From the Transantarctic Mountains CollectionOPEN ACCESS
S. Ottaviani, L. Folco, M. D. Suttle, R. Repič, L. Mancini, T. Battiston, S. Iannini Lelarge, M. Masotta JGR PLanets, First Published: 6 July 2026 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Key Points “We estimate the…
Distribution of purine and pyrimidine bases in Antarctic carbonaceous meteorites
Yasuhiro Oba, Takuto Tomaru, Toshiki Koga, Yoshihiro Furukawa, Sako Sunami, Toshihiro Yoshimura, Yuta Hirakawa, Nanako O. Ogawa, Naohiko Ohkouchi, Keiko Kuwamoto, Yoshinori Takano, Hiroshi Naraoka Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 6…
Chemical and isotopic compositions of aluminum-rich chondrules: insights into material mixing in the early solar systemOPEN ACCESS
Yuki Masuda, Yoshiaki Shiraishi, Tetsuya Yokoyama, Tsuyoshi Iizuka, Martin Schiller, Martin Bizzarro Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 5 July 2026 LINK + PDF (OPEN ACCESS) “Chondrules are high-temperature products formed in…
Petrogenesis of the Amazonian enriched gabbroic shergottite Northwest Africa 13440
Robert W. Nicklas, Dylan M. Seal, Melody Z. Chen, Kyra L. Schroeder, James M. D. Day, Ben G. Rider-Stokes, Anthony B. Love, James Malley MAPS, Version of Record online: 03 July 2026 LINK “As the…
Remanent crustal strain on Mars in non-poikilitic olivine of NWA 7721OPEN ACCESS
Yaozhu Li, Szilvia Kalácska, Phil J. A. McCausland, Roberta L. Flemming, Callum J. Hetherington, Bo Zhao, Can Yildirim & Carsten Detlefs npj Space Exploration, Volume 2, Article number: 30 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “We…
Mechanical Properties of Oued Chebeika 002 Bundle
Bhatt, Suraj; Garvie, Laurence A. J.; Hoover, Christian G. NASA Planetary Data System, published: 13 April 2026 LINK (OPEN ACCESS) “This bundle provides nanoindentation measurements, associated wavelength dispersive spectroscopy point analyses, wavelength dispersive spectroscopy maps,…
Implications for martian mantle reservoirs from petrogenesis of the 1.27 Ga olivine-phyric shergottite Northwest Africa 13,441
Dylan M. Seal, Melody Z. Chen, Robert W. Nicklas, Ethan F. Baxter, James M.D. Day, Ben G. Rider-Stokes, Anthony B. Love, James Malley Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 27 June 2026…
What Was the Initial O-Isotope Composition of Water Accreted by the CM Chondrites?
Suttle M. D.* METSOC 2026 abstract (PDF) “Numerical modelling (O-isotope perspective) shows CM chondrite alteration is best explained by isotopically light, TFL-like water (δ18O <30‰), moderate W/R (0.3-0.7), progressive heating (20-100°C), and pulsed dissolution. A…
Alteration History Effects on Soluble Organic Matter of the Tagish Lake Meteorite
Tunney L. D.* Slater G. F. Bowman D. T. Herd C. D. K. METSOC 2026 abstract (PDF) “An analysis of the bulk dichloromethane and hot water organic compound extractions of five Tagish Lake meteorite samples,…
Mineralogy and Petrology of Tagish Lake: Insights into Parent Body Alteration and Predictions for Asteroid Bennu
Olan-Rubio V.* Herd C. D. K. Apisuk N. METSOC 2026 abstract (PDF) “We analyzed samples TL5a, TL6 and TL7 to unveil their mineralogy and petrology for the first time. This can serve as a reference…
Timescales of CM Carbonaceous Chondrite Aqueous Alteration
Haller R. L. Lee M. R.* Hodson M. E. METSOC 2026 abstract (PDF) “To make a CM chondrite, just add water and leave in a warm place for 1000 years.”
Northwest Africa 18027: A New Nakhlite
Lobanov L-A.* Schofield P. F. Jennings E. S. Petrone C. M. Downes H. et al. METSOC 2026 abstract (PDF) “Nakhlite meteorites are clinopyroxene-rich igneous rocks from Mars. Northwest Africa 18027 is a recently discovered nakhlite…
Beyond Vesta: Spectroscopic Similarities of HED and Anomalous HED Meteorites
Wong A. Y. C.* Rider-Stokes B. G. Greenwood R. C. Anand M. METSOC 2026 abstract (PDF) “The UV-Vis-NIR spectra of HED and oxygen-anomalous HED meteorites are compared to that of (4) Vesta and V-type asteroids….
Erg Atouila 001 Ungrouped Achondrite: Implications for Evolution of Na-Rich Asteroidal Crusts
Samal S.* Hu X-J. Timoner C. Hu S. Grandhomme E. et al. METSOC 2026 abstract (PDF) “EA 001 is an albitite ungrouped achondrite formed under alkaline, silica-undersaturated conditions near the IW buffer, representing a highly…
Ksar Ghilane 022 Ungrouped Achondrite: Evidence for Highly Reduced Parent Body
Oballa G.* Barbaro A. Tkalcec B. Nestola F. Brenker F. E. METSOC 2026 abstract (PDF) “Ksar Ghilane 022 is a rare pyroxenite meteorite. Analysis reveals Fe-free silicates and complex Cr-Mn-Fe sulfides. These indicate formation under…
Pb-Pb Ages of Aubrite Basalt Vitrophyres Suggest Protracted Volcanism on the Aubrite Parent Body
Guillemin E.* Cartier C. Faure F. Deligny C. Whitehouse M. J. et al. METSOC 2026 abstract (PDF) “We dated in-situ, and using the Pb-Pb systematics, aubrite basalt vitrophyres that represent volcanic lithologies among the aubrite…
Feldspathic Clasts in CH Chondrites: Fragments of Differentiated Bodies
Krot A. N.* Nagashima K. Bischoff A. METSOC 2026 abstract (PDF) “O-isotope compositions (d18O = 4.5−11.2‰, D17O = −0.8 to 0.6‰) and resolvable excesses of radiogenic 26Mg [(26Al/27Al)0 ~ 1×10−6] in plagioclase clasts (An0-99Ab0-99) in…
A CM2 Carbonaceous Chondrite-Rich Sample of Asteroid Vesta: Mount Pratt (PRA) 04401
Whitworth C. Bates H. C.* METSOC 2026 abstract (PDF) “PRA 04401 may be one of the most carbonaceous chondrite-rich howardites, exposing an extensive record of exogeneous delivery to the Vesta. We determined the composition of…
From Skyfall to Database: Italy’s Journey Toward a National Meteorite Catalog
Franza A.* Shehaj X. Pratesi G. METSOC 2026 abstract (PDF) “CAMEX is Italy’s first national effort to standardize and digitize meteorite collections. Using advanced documentation and open-access databases, it aims to unify fragmented records, enhance…
International Dynamics of Meteorite Collecting in the Early 19th Century
Le Roux R.* Gounelle M. METSOC 2026 abstract (PDF) “The paper inquires early 19th century meteorite collecting networks in Europe. It lays out a comparative study of the major European collections of meteorite, from the…
Formation Process of Quenched Angrites Inferred from Deformed Olivine Xenocrysts in Gadamis 010
Hayashi H.* Honda R. Mikouchi T. Yamaguchi A. METSOC 2026 abstract (PDF) “Gadamis 010 contains olivine xenocrysts and some shows mosaic texture with little Fe-Mg zoning but variable Ca content. This supports the “hot shock”…
Ureilites Are an Extensive Suite of Deep to Shallow Mantle Samples from a Dwarf Protoplanet
Tomkins A. G.* Jennings L. A. Kirby R. S. METSOC 2026 abstract (PDF) “We use a combination of thermometry, petrology and thermal modelling to explore the characteristics of the Ureilite Parent Body mantle, and the…
Evaluating H2O Sources in the Ribbeck Aubrite
Hua F. T. S.* Stalder R. Joachim-Mrosko B. Hamann C. Hecht L. et al. METSOC 2026 abstract (PDF) “OH measured in Ribbeck enstatite by IR spectroscopy is non-structural and decreases after heating, indicating terrestrial adsorption….
The Brachinites and Brachinite-Like Ungrouped Achondrites: A Unique Meteorite Group
Cuppone T.* Pratesi G. Casalini M. Stephant A. Anand M. et al. METSOC 2026 abstract (PDF) “A complete petro-mineralogic, geochemical and O-Cr isotopic survey perfomed on 15 meteorites (5 brachinites and 10 ungrouped brachinite-like) highlights…
A Spinifex-Textured Andesite in Erg Chech 002 that Bears on the Achondrite’s Origin and Age
Sanders I. S.* Simms M. J. Guyett P. C. METSOC 2026 abstract (PDF) “A fine-grained, spinifex-textured second andesite in the oldest-known achondrite, Erg Chech 002, opens new discussion of the meteorite’s cooling history, its magmatic…
Deciphering the Primary Melt of Erg Chech 002 from the Study of Megacrysts and Melt Inclusions
Grangé A.* Collinet M. Hamann C. Kaufmann F. E. D. Greshake A. METSOC 2026 abstract (PDF) “New melt inclusion data show that EC 002 derived from a more primitive, low-viscosity melt than previously inferred, reshaping…
A Plagioclase Xenocryst in the Oldest Quenched Angrite Northwest Africa 12879: Implications for the Relationship Between Angrite Sub-Groups and the Igneous Activity of Angrite Parent Body
Honda R.* Hayashi H. Bizzarro M. Connelly J. N. Bollard J. et al. METSOC 2026 abstract (PDF) “We studied mineralogy and cosmochemistry of NWA 12879 angrite, which contains a plagioclase xenocryst. Our results indicate that…
Formation Time and Thermal Evolution of the Angrite Parent Body
Neumann W.* Bouvier A. Reger P. M. Trieloff M . METSOC 2026 abstract (PDF) “Thermal evolution model fits to the chronology of angrites indicate a parent body accretion time between 0.6 Ma and 0.8 Ma…
Resolving Complex Mass Interferences in TOF-SIMS Spectra of Extraterrestrial Organics in a Carbonaceous Chondrite
Nomura A.* Moritani K. Nakamura T. Eguchi N. Sano N. et al. METSOC 2026 abstract (PDF) “Developed a preliminary correlation-based analysis for GCIB-TOF-SIMS to resolve mass interferences, enabling initial identification of organics in the carbonaceous…
Thermal Evolution of Volatile-Rich Planetesimals: Implications for Lithological Diversity in Ryugu and CI Chondrites
Yamazaki S.* Mikouchi T. Zolensky M. E. METSOC 2026 abstract (PDF) “We modeled thermal evolution of volatile-rich planetesimals to explain lithological diversity in Ryugu and CI chondrites. Body size (50–100 km), accretion timing (~2–3 Myr),…
Alteration of Meteorites in the Dense Collection Areas of East Antarctica: New Constraints Through the Belgica Mountains Collection
Pinto G. A.* Tollenaar V. Debaille V. Pourkhorsandi H. Gattacceca J. et al. METSOC 2026 abstract (PDF) “We analyzed the weathering degree of all the newly collected meteorites from the ULTIMO mission to the Belgica…
Indian Meteorites of the Last Three Decades: Kopargaon and the Expanding Meteorite Record of India
Jaiswal S.* Mahajan R. R. Kumar A. Marhas K. K. METSOC 2026 abstract (PDF) “Meteorites provide key records of Solar System history, from primitive asteroids to differentiated bodies. Indian finds are mostly ordinary chondrites with…
