We have a mid-month Geochimica Et Cosmochimica Acta, 15 January 2026 (vol 413):
Cody, G. D. Alexander, C. M. O’D. Foustoukos, D. I. et al. Placing asteroid Bennu’s organic solids in molecular and elemental context with those in aqueously altered carbo… Pg 33-47 .2025.09.009
Crowther, S. A. Cowpe, J. S. Fawcett, L. et al. An I-Xe age 8 Myr after solar system formation in a Hayabusa2 sample records alteration on the parent planetesimal of asteroi… Pg 218 .2025.12.008
Meteorites are asteroid pieces, I keep repeating. Meteorites have diversity but unfortunately arrive without context and history. Sample return missions give parentage, and context information on those parent bodies. The best solution, then, is to study meteorites plus returned samples. Cody et al. do that- use meteorites for breadth and depth, plus OSIRIS-REx samples as a reference.
One form of information on meteorites is their gas content- up to a point. A cataclysmic event may ‘reset the clock’ by disturbing the gas levels. Crowther et al. use this ‘bug’ as a feature, deducing a history of Hayabusa2’s Ryugu sample. Meteorites (and their parents) hold histories of the Solar System, I keep repeating.