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Spacecraft sample collection and subsurface excavation of asteroid (101955) Bennu.
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; Drouet d'Aubigny, C Y; 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; Pajola, M; Pelgrift, J Y; Polit, A T; Ravine, M A; Reuter, D C; Rizk, B; Rozitis, B; Ryan, A J; Sahr, E M; Sakatani, N.
Afiliación
  • Lauretta DS; Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, USA.
  • Adam CD; KinetX, Simi Valley, CA, USA.
  • Allen AJ; Department of Physics, University of Central Florida, Orlando, FL, USA.
  • Ballouz RL; Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, USA.
  • Barnouin OS; The Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA.
  • Becker KJ; Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, USA.
  • Becker T; Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, USA.
  • Bennett CA; Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, USA.
  • Bierhaus EB; Lockheed Martin Space, Littleton, CO, USA.
  • Bos BJ; Goddard Space Flight Center, Greenbelt, MD, USA.
  • Burns RD; Goddard Space Flight Center, Greenbelt, MD, USA.
  • Campins H; Department of Physics, University of Central Florida, Orlando, FL, USA.
  • Cho Y; Department of Earth and Planetary Environmental Science, University of Tokyo, Tokyo, Japan.
  • Christensen PR; School of Earth and Space Exploration, Arizona State University, Tempe, AZ, USA.
  • Church ECA; Lockheed Martin Space, Littleton, CO, USA.
  • Clark BE; Department of Physics and Astronomy, Ithaca College, Ithaca, NY, USA.
  • Connolly HC; Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, USA.
  • Daly MG; Department of Geology, Rowan University, Glassboro, NJ, USA.
  • DellaGiustina DN; Department of Earth and Space Science and Engineering, York University, Toronto, ON, Canada.
  • Drouet d'Aubigny CY; Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, USA.
  • Emery JP; Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, USA.
  • Enos HL; Department of Astronomy and Planetary Science, Northern Arizona University, Flagstaff, AZ, USA.
  • Kasper SF; Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, USA.
  • Garvin JB; Lockheed Martin Space, Littleton, CO, USA.
  • Getzandanner K; Goddard Space Flight Center, Greenbelt, MD, USA.
  • Golish DR; Goddard Space Flight Center, Greenbelt, MD, USA.
  • Hamilton VE; Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, USA.
  • Hergenrother CW; Southwest Research Institute, Boulder, CO, USA.
  • Kaplan HH; Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, USA.
  • Keller LP; Goddard Space Flight Center, Greenbelt, MD, USA.
  • Lessac-Chenen EJ; Johnson Space Center, Houston, TX, USA.
  • Liounis AJ; KinetX, Simi Valley, CA, USA.
  • Ma H; Goddard Space Flight Center, Greenbelt, MD, USA.
  • McCarthy LK; Lockheed Martin Space, Littleton, CO, USA.
  • Miller BD; KinetX, Simi Valley, CA, USA.
  • Moreau MC; Lockheed Martin Space, Littleton, CO, USA.
  • Morota T; KinetX, Simi Valley, CA, USA.
  • Nelson DS; Department of Earth and Planetary Environmental Science, University of Tokyo, Tokyo, Japan.
  • Nolau JO; KinetX, Simi Valley, CA, USA.
  • Olds R; Department of Physics, University of Central Florida, Orlando, FL, USA.
  • Pajola M; Lockheed Martin Space, Littleton, CO, USA.
  • Pelgrift JY; Astronomical Observatory of Padova, Italian National Institute for Astrophysics (INAF), Padova, Italy.
  • Polit AT; KinetX, Simi Valley, CA, USA.
  • Ravine MA; Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, USA.
  • Reuter DC; Malin Space Science Systems, San Diego, CA, USA.
  • Rizk B; Goddard Space Flight Center, Greenbelt, MD, USA.
  • Rozitis B; Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, USA.
  • Ryan AJ; School of Physical Sciences, Open University, Milton Keynes, UK.
  • Sahr EM; Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, USA.
  • Sakatani N; KinetX, Simi Valley, CA, USA.
Science ; 377(6603): 285-291, 2022 07 15.
Article en En | MEDLINE | ID: mdl-35857591
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.
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Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Idioma: En Revista: Science Año: 2022 Tipo del documento: Article País de afiliación: Estados Unidos
Texto completo
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Idioma: En Revista: Science Año: 2022 Tipo del documento: Article País de afiliación: Estados Unidos