@article{4c9d23418bfe417f86299f3b2187b49f,
title = "Spacecraft sample collection and subsurface excavation of asteroid (101955) Bennu",
abstract = "Carbonaceous asteroids, such as (101955) Bennu, preserve material from the early Solar System, including volatile compounds and organic molecules. We report spacecraft imaging and spectral data collected during and after retrieval of a sample from Bennu{\textquoteright}s surface. The sampling event mobilized rocks and dust into a debris plume, excavating a 9-meter-long elliptical crater. This exposed material is darker, spectrally redder, and more abundant in fine particulates than the original surface. The bulk density of the displaced subsurface material was 500 to 700 kilograms per cubic meter, which is about half that of the whole asteroid. Particulates that landed on instrument optics spectrally resemble aqueously altered carbonaceous meteorites. The spacecraft stored 250 ± 101 grams of material, which will be delivered to Earth in 2023.",
author = "Lauretta, {D. S.} and Adam, {C. D.} and Allen, {A. J.} and Ballouz, {R. L.} and Barnouin, {O. S.} and Becker, {K. J.} and T. Becker and Bennett, {C. A.} and Bierhaus, {E. B.} and Bos, {B. J.} and Burns, {R. D.} and H. Campins and Y. Cho and Christensen, {P. R.} and Church, {E. C.A.} and Clark, {B. E.} and Connolly, {H. C.} and Daly, {M. G.} and DellaGiustina, {D. N.} and d{\textquoteright}Aubigny, {C. Y.Drouet} and Emery, {J. P.} and Enos, {H. L.} and Kasper, {S. Freund} and Garvin, {J. B.} and K. Getzandanner and Golish, {D. R.} and Hamilton, {V. E.} and Hergenrother, {C. W.} and Kaplan, {H. H.} and Keller, {L. P.} and Lessac-Chenen, {E. J.} and Liounis, {A. J.} and H. Ma and McCarthy, {L. K.} and Miller, {B. D.} and Moreau, {M. C.} and T. Morota and Nelson, {D. S.} and Nolau, {J. O.} and R. Olds and M. Pajola and Pelgrift, {J. Y.} and Polit, {A. T.} and Ravine, {M. A.} and Reuter, {D. C.} and B. Rizk and B. Rozitis and Ryan, {A. J.} and Sahr, {E. M.} and N. Sakatani and Seabrook, {J. A.} and Selznick, {S. H.} and Skeen, {M. A.} and Simon, {A. A.} and S. Sugita and Walsh, {K. J.} and Westermann, {M. M.} and Wolner, {C. W.V.} and K. Yumoto",
note = "Funding Information: The OSIRIS-REx sample collection event was the culmination of years of effort by hundreds of team members in the face of substantial challenges. We are grateful to all who contributed. D.S.L., C.W.V.W., C.D.A., D.S.N., J.Y.P., E.M.S., E.J.L.-C., L.K.M., C.W.H., K.J.W., R.L.B., O.S.B., D.N.D., K.J.B., T.B., C.A.B., D.R.G., C.Y.D.d{\textquoteright}A., B.Ri., B.J.B., J.B.G., M.A.R., R.B., M.C.M., H.C., A.A., J.N., V.E.H., P.R.C., A.A.S., B.E.C., H.H.K., D.C.R., H.L.E., A.T.P., M.M.W., S.H.S., K.G., A.J.L., L.P.K., R.O., H.M., B.D.M., M.A.S., S.F.K., E.C.A.C., A.J.R., J.P.E., and H.C.C. were supported by NASA under contract NNM10AA11C issued through the New Frontiers Program. M.P. was supported by the Italian Space Agency (ASI) under the ASI-INAF agreement 2017-37-H.0. S.S. was supported by the International Network of Planetary Sciences grant from the Japanese Society for Promotion of Science (JSPS) Core-to-Core program. B.Ro. acknowledges funding support from the UK Science and Technology Facilities Council (STFC). M.G.D. and J.A.S. were supported by the Canadian Space Agency. Publisher Copyright: Copyright {\textcopyright} 2022 the authors",
year = "2022",
month = jul,
day = "15",
doi = "10.1126/science.abm1018",
language = "English (US)",
volume = "377",
pages = "285--291",
journal = "Science",
issn = "0036-8075",
publisher = "American Association for the Advancement of Science",
number = "6603",
}