ATTENZIONE! IL REPOSITORY E’ APERTO ESCLUSIVAMENTE ALL’IMMISSIONE DEI RAPPORTI TECNICI (COLLEZIONE 4.01). NON E’ POSSIBILE INSERIRE PRODOTTI IN TUTTE LE ALTRE COLLEZIONI, A CAUSA DI PROBLEMI TECNICI. THE REPOSITORY IS OPEN EXCLUSIVELY FOR THE SUBMISSION OF TECHNICAL REPORTS (COLLECTION 4.01). SUBMISSIONS TO ALL OTHER COLLECTIONS ARE TEMPORARILY UNAVAILABLE, DUE TO TECHNICAL ISSUES.
 

Spacecraft sample collection and subsurface excavation of asteroid (101955) Bennu

Journal
Date Issued
2022
Author(s)
Lauretta, D. S.
•
Adam, C. D.
•
Allen, A. J.
•
Ballouz, R. L.
•
Barnouin, O. S.
•
Becker, K. J.
•
Becker, T.
•
Bennett, C. A.
•
Bierhaus, E. B.
•
Bos, B. J.
•
Burns, R. D.
•
Campins, H.
•
Cho, Y.
•
Christensen, P. R.
•
Church, E. C.A.
•
Clark, B. E.
•
Connolly, H. C.
•
Daly, M. G.
•
DellaGiustina, D. N.
•
d’Aubigny, C. Y.Drouet
•
Emery, J. P.
•
Enos, H. L.
•
Kasper, S. Freund
•
Garvin, J. B.
•
Getzandanner, K.
•
Golish, D. R.
•
Hamilton, V. E.
•
Hergenrother, C. W.
•
Kaplan, H. H.
•
Keller, L. P.
•
Lessac-Chenen, E. J.
•
Liounis, A. J.
•
Ma, H.
•
McCarthy, L. K.
•
Miller, B. D.
•
Moreau, M. C.
•
Morota, T.
•
Nelson, D. S.
•
Nolau, J. O.
•
Olds, R.
•
•
Pelgrift, J. Y.
•
Polit, A. T.
•
Ravine, M. A.
•
Reuter, D. C.
•
Rizk, B.
•
Rozitis, B.
•
Ryan, A. J.
•
Sahr, E. M.
•
Sakatani, N.
•
Seabrook, J. A.
•
Selznick, S. H.
•
Skeen, M. A.
•
Simon, A. A.
•
Sugita, S.
•
Walsh, K. J.
•
Westermann, M. M.
•
Wolner, C. W.V.
•
Yumoto, K.
DOI
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’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.
Volume
377
Issue
6603
Start page
285
Uri
Url
Issn Identifier
0036-8075
Rights
open.access
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