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Jenniskens, P.* ; Zolensky, M.E.* ; Gordon, A.* ; Gordon, J.* ; Hankey, M.* ; Silber, E.A.* ; Giannone, M.R.* ; Han, J.* ; Le, L.* ; Fries, M.D.* ; Ziegler, K.* ; Chan, Q.H.S.* ; Behera, D.* ; Watson, J.S.* ; Sephton, M.A.* ; Brakeley, J.* ; Munday, B.* ; Kebukawa, Y.* ; Gainsforth, Z.* ; Suzuki, M.* ; Brennecka, G.A.* ; Render, J.H.* ; Busemann, H.* ; Krietsch, D.* ; Maden, C.* ; Welten, K.C.* ; Nishiizumi, K.* ; Caffee, M.W.* ; Hiroi, T.* ; Ruchti, S. ; Schmitt-Kopplin, P. ; Hertzog, J.* ; Carré, V.* ; Glavin, D.P.* ; Dworkin, J.P.* ; McLain, H.L.* ; Mojarro, A.* ; Aponte, J.* ; Buckner, D.* ; Ogawa, N.O.* ; Takano, Y.* ; Ohkouchi, N.* ; Tikoo, S.M.* ; Jung, J.* ; Riveros, E.M.* ; Friedrich, J.M.* ; Ebel, D.S.*

Meteor over New York City: Brines in a primitive CM asteroid.

Sci. Adv. 12, 14:eaea2105 (2026)
Publ. Version/Full Text Research data DOI PMC
Open Access Gold
Creative Commons Lizenzvertrag
The CI (Ivuna-type) carbonaceous material returned from asteroids Ryugu and Bennu contain mobilized sodium from the evaporation or freezing of liquid water into brines, shedding light on the internal structure of ice-rich CI-type worlds and the formation of prebiotic organic compounds. The formation of brines has not been demonstrated in CM (Mighei-type) carbonaceous chondrites, which also supplied organic matter to the early Earth. Here, we announce the fall of a primitive meteorite from a daytime fireball over the New York metropolitan area in July 2024. It is a CM2 breccia that contains unique CM1 clasts rich in water and sodium. The meteorite contains abundant amino acids and other products of organic chemistry in brines that reveal subsurface processes on CM-type asteroid parent bodies.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Meteorite ; Asteroid ; Breccia ; Meteoroid ; Organic Matter ; Liquid Water ; Carbonaceous Chondrite; Carbonaceous Chondrites; Aqueous Alteration; Organic-matter; Noble-gases; Nitrogen; Diversity; Origin; Bodies
ISSN (print) / ISBN 2375-2548
e-ISSN 2375-2548
Journal Science Advances
Quellenangaben Volume: 12, Issue: 29, Pages: 14, Article Number: eaea2105 Supplement: ,
Publisher American Association for the Advancement of Science (AAAS)
Publishing Place Washington, DC [u.a.]
Reviewing status Peer reviewed
Institute(s) Research Unit BioGeoChemistry and Analytics (BGC)
Grants NASA
NASA Hayabusa2 Participating Scientist Program through the Johnson Space Flight Center
NASA Johnson Space Center, Internal Scientist Funding Program funding
NASA Planetary Science Enabling Facilities program
NASA Goddard Space Flight Center, Planetary Science Division Internal Scientist Funding Program through the Fundamental Laboratory Research (ISFM) work package at Goddard Space Flight Center
NASA Goddard Space Flight Center, Planetary Science Division Internal Scientist Funding Program through the Fundamental Laboratory Research (ISFM) work package at Goddard Center for Astrobiology
Science and Technology Facilities Council (STFC) Astronomy Small Award Research
Royal Society International Exchanges Scheme-Standard Programme
UK Research and Innovation
Japan Society for the Promotion of Science KAKENHI
Science and Technology Facilities Council (STFC)
German Research Foundation (DFG)
Swiss National Science Foundation (SNF)