¹Ceren Kamil, ^2,4Ozan Unsalan, ^3,4Cisem Altunayar-Unsalan, ⁴Michael Zolensky
Journal of Astrophysics and Astronomy (in Press)
Link to Article [DOI: 10.1007/s12036-026-10188-7]
¹Department of Material Science and Engineering, Graduate School of Natural and Applied Sciences, Ege University, Izmir, 35100, Turkey
²Department of Physics, Faculty of Science, Ege University, Izmir, 35100, Turkey
³Graduate School of Natural and Applied Sciences, Ege University, Izmir, 35040, Turkey
⁴Astromaterials Research and Exploration Science (ARES), NASA Johnson Space Center, Houston, 77058, TX, United States

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¹Debjeet Pathak, ¹Gelu Costin, ¹Rajdeep Dasgupta
Chemical Geology (in Press)
Link to Article [DOI: 10.1016/j.chemgeo.2026.123766]
¹Department of Earth, Environmental and Planetary Sciences, Rice University, MS 126, 6100 Main Street, Houston, 77005, TX, United States

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^1,2J. Beccarelli, ²M. Pajola, ³M. Delbo, ²G. Munaretto, ²A. Lucchetti, ²F. Tuscherti, ²L. Penasa, ²C. Rossi, ²E. Simioni, ⁴G. Poggiali
Astronomy & Astrophysics, 713, L19
Open Access Link to Article [DOI: 10.1051/0004-6361/202661503]
¹Centro di Ateneo Studi e Attività Spaziali “Giuseppe Colombo” (CISAS/Unipd), Via Venezia 1, 35131 Padova (PD), Italy
²Istituto Nazionale di Astrofisica, Osservatorio Astronomico di Padova (INAF/OAPD), Vicolo dell’Osservatorio, 5, 35122 Padova (PD), Italy
³Université Côte d’Azur, CNRS-Lagrange, Observatoire de la Côte d’Azur, CS 34229, F 06304 Nice Cedex 4, France
⁴INAF Osservatorio Astronomico di Arcetri, largo E. Fermi n.5, I-50125 Firenze, Italy

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^1,2T. J. Dyer, ³J. Beccarilli, ^1,4M. Delbo’, ⁴C. Avdellidou, ³M. Pajola, ^5,4A. Milton, ³A. Lucchetti, ³G. Munaretto
Astronomy & Astrophysics, 714, A307
Open Access Link to Article [DOI: 10.1051/0004-6361/202661534]
¹Université Côte d’Azur, CNRS–Lagrange, Observatoire de la Côte d’Azur, CS 34229, 06304 Nice Cedex 4, France
²Centre national d’études spatiales (CNES), 2 Place Maurice Quentin, 75039 Paris, France
³Istituto Nazionale di Astrofisica (INAF) – Osservatorio Astronomico di Padova (OAPd), Vicolo dell’Osservatorio n.5, Padova, Italy
⁴University of Leicester, School of Physics and Astronomy, University Road, Leicester LE1 7RH, UK
⁵University of Leicester, School of Natural Sciences, University Road, Leicester LE1 7RH, UK

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^1,2Zhi Li, ^1,3Ying-Kui Xu, ¹Shi-Jie Li, ¹Yang Li, ⁴Dan Zhu, ^1,2De-Liang Wang, ^4,5Yun Liu
Chemical Geology (in Press)
Open Access Link to Article [DOI: 10.1016/j.chemgeo.2026.123742]
¹Center for Lunar and Planetary Sciences, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
²University of Chinese Academy of Sciences, Beijing, 100049, China
³NWU-HKU Joint Center of Earth and Planetary Sciences, Northwest University, Xi’an, 710127, China
⁴State Key Laboratory of Critical Mineral Research and Exploration, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
⁵Research Center for Planetary Science, College of Earth Science, Chengdu University of Technology, Chengdu, 610059, China

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¹Lara R. McMonigal, ^1,2Jon M. Friedrich
Geological Society Special Publication (in Press)
Link to Article [DOI: 10.1144/gslsp.ecpub2024-115]
¹Department of Chemistry and Biochemistry, Fordham University, 441 East Fordham Road, Bronx, 10458-9993, NY, United States
²Department of Earth and Planetary Sciences, American Museum of Natural History, 200 Central Park West, New York, 10024-5102, NY, United States

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¹R. E. Merle, ²C. Deligny, ²M. J. Whitehouse, ²G. G. Kenny, ³K. K. Larsen
Communications Earth & Environment (in Press)
Open Access Link to Article [DOI: 10.1038/s43247-025-03002-9]
¹Department of Earth Sciences, Uppsala University, Villavägen 16, Uppsala, 75236, Sweden
²Swedish Museum of Natural History, Stockholm, SE-104 05, Sweden
³Centre for Star and Planet Formation, Globe institute, University of Copenhagen, Øster Voldgade 5-7, Copenhagen, Denmark

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^1,2Futing Yin, ^1,2,3Hong Tang, ^1,2Tian Zhang, ⁴Tingfeng Cheng, ^1,2,3Xiongyao Li, ¹Hong Jin, ¹Yuanyun Wen, ⁵Xiangliang Pan, ^1,2,3Jianzhong Liu
Journal of Geophysical Research: Planets, 131, e2026JE009805 Link to Article [DOI: 10.1029/2026JE009805]

¹Center for Lunar and Planetary Sciences, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, China
²College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China
³CAS Center for Excellence in Comparative Planetology, Hefei, China
⁴College of Environment, Zhejiang University of Technology, Hangzhou, China
⁵Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, Hangzhou, China
Published by arrangement with John Wiley & Sons

Organic matter (OM) in C‐type asteroids provides important insights into the early evolution ofthe solar system and the origin of life on Earth. However, the responses of different types of OM to spaceweathering remain unclear. Here, we performed a He+ irradiation experiment on the Murchison meteorite tosimulate the solar wind irradiation process; the experiment was conducted at a fluence of 1.2 × 1017 ions/cm2,simulating the solar wind exposure of a C‐type asteroid over an 800‐year timescale. Raman and nanoscaleinfrared spectroscopy were used to analyze the changes in OM after He+ irradiation. The nano‐IR spectrarevealed the presence of six organic functional groups (carboxylic acids, aliphatic and aromatic hydrocarbons,amides, amino acids, and aldehydes) within the macromolecular and soluble OM of the Murchison matrix.Irradiation led to an increase in the disorder of OM and reduction in the total OM content via the disruption of Cbonds in macromolecular organic compounds and sputtering of their constituent atoms and molecules. Aliphatichydrocarbons were modified to the greatest degree while aromatic hydrocarbons were more resistant to He+irradiation. These findings enhance our understanding of the formation and evolution of extraterrestrial OMduring the process of solar wind irradiation.

^1,2E. El Hachimi, ^1,2H. Chennaoui Aoudjehane, ³S. Russell, ⁴B. Devouard, ⁴J. Gattacceca
Journal of African Earth Sciences, 234, 105944
Link to Article [DOI: 10.1016/j.jafrearsci.2025.105944]
¹GEOPEN Laboratory, Hassan II University of Casablanca, Faculty of Science Ain Chock, km 8 Route d’El Jadida, 20150, Casablanca, Morocco
²ATTARIK Foundation for Meteoritics and Planetary Science, Casablanca, Morocco
³Planetary Materials Group, The Natural History Museum, Cromwell Road, London, SW7 5BD, UK
⁴Aix Marseille Univ, CNRS, IRD, INRAE, CEREGE, Aix-en-Provence, France

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^1,2J. M. Trigo-Rodríguez, ^1,2P. Grèbol-Tomàs, ³J. Ibáñez-Insa, ⁴J. Alonso-Azcárate, ^5,6M. Gritsevich
Monthly Notices of the Royal Astronomical Society, 545, 1–15
Link to Article [DOI: 10.1093/mnras/staf1902]
¹Institut de Ciències de l’Espai (ICE, CSIC), Campus UAB, Carrer de Can Magrans S/N, Cerdanyola del Vallès, E-08193 Barcelona, Catalonia, Spain
²Institut d’Estudis Espacials de Catalunya (IEEC), Esteve Terradas 1, Edifici RDIT, Of. 212, Parc Mediterrani de la Tecnologia (PMT), Campus del Baix Llobregat–UPC, Castelldefels, E-08860 Barcelona, Catalonia, Spain
³Geociències Barcelona (GEO3BCN-CSIC), Carrer de Lluís Solé i Sabarís, 1, E-08028 Barcelona, Catalonia, Spain
⁴Universidad de Castilla-La Mancha (UCLM), Facultad CC Ambientales y Bioquímica, Campus Fábrica de Armas, E-45071 Toledo, Castilla-La Mancha, Spain
⁵Faculty of Science, University of Helsinki, Gustaf Hällströmin katu 2, FI-00014 Helsinki, Finland
⁶Institute of Physics and Technology, Ural Federal University, Mira str. 19, 620002 Ekaterinburg, Russia

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