The variety and origin of materials accreted by Bennu's parent asteroid
Abstract
The first bodies to form in the Solar System acquired their materials from stars, the presolar molecular cloud and the protoplanetary disk. Asteroids that have not undergone planetary differentiation retain evidence of these primary accreted materials. However, geologic processes such as hydrothermal alteration can dramatically change their bulk mineralogy, isotopic compositions and chemistry. Here we analyse the elemental and isotopic compositions of samples from asteroid Bennu to uncover the sources and types of material accreted by its parent body. We show….
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Article inforamation
J.J.Barnes, A.N.Nguyen, F.A.J.Abernethy, K.Bajo, D.V.Bekaert, E.Bloch, G.A.Brennecka, H.Busemann, J.S.Cowpe, S.A.Crowther, M.Ek7, L.J.Fawcett, M.A.Fehr, I.A.Franchi, E.Füri, J.D.Gilmour, M.M.Grady, R.C.Greenwood, P.Haenecour, N.Kawasaki, P.Koefoed, D.Krietsch, L.Le, K.M.Liszewska, C.Maden, J.Malley, Y.Marrocchi, B.Marty, L.A.E.Meyer, T.S.Peretyazhko, L.Piani, J.Render, S.S.Russell, M.Rüfenacht, N.Sakamoto, M.Schönbächler, Q.R.Shollenberger, L.Smith, K.Thomas-Keprta, A.B.Verchovsky, J.Villeneuve, K.Wang, K.C.Welten, J.Wimpenny,E.A.Worsham, H.Yurimoto, et al. The variety and origin of materials accreted by Bennu’s parent asteroid, Nature Astronomy (2025)
DOI:10.1038/s41550-025-02631-6
