1. Evidence for interstellar origin of seven dust particles collected by the Stardust spacecraft
- Author
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Westphal, Andrew J., Rhonda Stroud, Bechtel, Hans A., Brenker, Frank E., Butterworth, Anna L., Flynn, George J., Frank, David R., Gainsforth, Zack, Hillier, Jon K., Postberg, Frank, Simionovici, Alexandre S., Sterken, Veerle J., Nittler, Larry R., Allen, Carlton, Anderson, David, Ansari, Asna, Bajt, Sasa, Bastien, Ron K., Bassim, Nabil, Bridges, John, Brownlee, Donald E., Burchell, Mark, Burghammer, Manfred, Changela, Hitesh, Cloetens, Peter, Davis, Andrew M., Doll, Ryan, Floss, Christine, Gruen, Eberhard, Heck, Philipp R., Hoppe, Peter, Hudson, Bruce, Huth, Joachim, Kearsley, Anton, King, Ashley J., Lai, Barry, Leitner, Jan, Lemelle, Laurence, Leonard, Ariel, Leroux, Hugues, Lettieri, Robert, Marchant, William, Ogliore, Ryan, Ong, Wei Jia, Price, Mark C., Sandford, Scott A., Tresseras, Juan-Angel Sans, Schmitz, Sylvia, Schoonjans, Tom, Schreiber, Kate, Silversmit, Geert, Sole, Vicente A., Srama, Ralf, Stadermann, Frank, Stephan, Thomas, Stodolna, Julien, Sutton, Stephen, Trieloff, Mario, Tsou, Peter, Tyliszczak, Tolek, Vekemans, Bart, Vincze, Laszlo, Korff, Joshua, Wordsworth, Naomi, Zevin, Daniel, Zolensky, Michael E., Stardust Home, Dusters, Laboratoire de Géologie de Lyon - Terre, Planètes, Environnement [Lyon] (LGL-TPE), École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Unité Matériaux et Transformations - UMR 8207 (UMET), Institut de Chimie du CNRS (INC)-Institut National de la Recherche Agronomique (INRA)-Centre National de la Recherche Scientifique (CNRS)-Université de Lille-Ecole Nationale Supérieure de Chimie de Lille (ENSCL), University of California [Berkeley] (UC Berkeley), University of California (UC), Naval Research Laboratory (NRL), Lawrence Berkeley National Laboratory [Berkeley] (LBNL), Goethe-University Frankfurt am Main, State University of New York at Plattsburgh (SUNY Plattsburgh), State University of New York (SUNY), NASA Johnson Space Center (JSC), NASA, University of Heidelberg, Medical Faculty, Observatoire des Sciences de l'Univers de Grenoble (OSUG), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), University of Stuttgart, Carnegie Institution for Science, Field Museum of Natural History [Chicago, USA], Deutsches Elektronen-Synchrotron [Hamburg] (DESY), University of Leicester, University of Washington [Seattle], University of Kent [Canterbury], Universiteit Gent = Ghent University (UGENT), The University of New Mexico [Albuquerque], European Synchrotron Radiation Facility (ESRF), University of Chicago, Washington University in Saint Louis (WUSTL), Max-Planck-Institut für Kernphysik (MPIK), Max-Planck-Gesellschaft, International Space Science Institute [Bern] (ISSI), Laboratoire de Géologie de Lyon - Terre, Planètes, Environnement (LGL-TPE), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Université Jean Monnet - Saint-Étienne (UJM)-Centre National de la Recherche Scientifique (CNRS), Institut National de la Recherche Agronomique (INRA)-Ecole Nationale Supérieure de Chimie de Lille (ENSCL)-Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS), University of Hawai‘i [Mānoa] (UHM), NASA Ames Research Center (ARC), University of Illinois [Chicago] (UIC), University of Illinois System, Argonne National Laboratory [Lemont] (ANL), Jet Propulsion Laboratory (JPL), NASA-California Institute of Technology (CALTECH), Inconnu, National Aeronautics & Space Administration (NASA), and United States Department of Energy (DOE)
- Subjects
GRAINS ,IMPACTS ,Solar System ,RETURN ,Comet dust ,Astrophysics::High Energy Astrophysical Phenomena ,Dust particles ,COMET 81P/WILD 2 ,Astrophysics ,WILD-2 ,Astrobiology ,EVENTS ,Interplanetary dust cloud ,SIZE DISTRIBUTION ,Astrophysics::Solar and Stellar Astrophysics ,Astrophysics::Galaxy Astrophysics ,Cosmic dust ,INTERPLANETARY DUST ,Physics ,Multidisciplinary ,Spacecraft ,business.industry ,AEROGEL ,WIND ,Debris ,13. Climate action ,[SDU]Sciences of the Universe [physics] ,Astrophysics::Earth and Planetary Astrophysics ,business ,Earth (classical element) - Abstract
Can you spot a speck of space dust? NASA's Stardust spacecraft has been collecting cosmic dust: Aerogel tiles and aluminum foil sat for nearly 200 days in the interstellar dust stream before returning to Earth. Citizen scientists identified most of the 71 tracks where particles were caught in the aerogel, and scanning electron microscopy revealed 25 craterlike features where particles punched through the foil. By performing trajectory and composition analysis, Westphal et al. report that seven of the particles may have an interstellar origin. These dust particles have surprisingly diverse mineral content and structure as compared with models of interstellar dust based on previous astronomical observations. Science , this issue p. 786
- Published
- 2014
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