Confirmation of the impact origin of the Late Ordovician Tvären impact structure (southeast Sweden) and emplacement of impactites in a marine settingOPEN ACCESS 

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Katarzyna J. Gajewska, Sanna Alwmark, Mikael Calner, Sylvain Richoz, Jens Ormö, Erik Sturkell, Carl Alwmark MAPS, Version of Record online: 11 March 2026 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “The Tvären structure in southeastern Sweden has…

Organic residues from biomass in a Muong Nong Australasian tektite

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Pierre-Marie Zanetta, Pierre Rochette, Anne-Magali Seydoux-Guillaume, Valérie Andrieu, Colette Guilbaud MAPS, Version of Record online: 10 March 2026 LINK “Australasian tektites (AAT) contain grains from the impact surface that survived the tektite formation process. Muong…

Shaken, not stirred: inefficient mixing of CM- and CI-like materialsOPEN ACCESS 

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Sarah E. Anderson, Pierre Vernazza, Miroslav Broz Astronomy & Astrophysics manuscript no. aa57394-25, March 11, 2026 PDF (OPEN ACCESS) “A recent study suggests that CM chondrite-like planetesimals formed in the vicinity of Saturn, in a…

Spectral insights into carbonaceous chondrites origins: Correlating main-Belt asteroids with CV chondrites

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A.P. Singh, S.S. Pillai, K.K. Marhas, K.V.N.G. Vikram, S. Bhattacharya Icarus, In Press, Journal Pre-proof, Available online 11 March 2026 LINK “Highlights “This study investigates the mid-infrared spectral correlation between four Carbonaceous Vigarano (CV) chondrites…

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