Results 41 to 50 of about 131,482 (278)

Variations in color and reflectance on the surface of asteroid (101955) Bennu

Science, 2020
The complex history of Bennu's surface The near-Earth asteroid (101955) Bennu is a carbon-rich body with a rubble pile structure, formed from debris ejected by an impact on a larger parent asteroid.
D. DellaGiustina, K. Burke, K. Walsh, Peter H. Smith, D. Golish, E. Bierhaus, R. Ballouz, T. Becker, H. Campins, E. Tatsumi, E. Tatsumi, K. Yumoto, S. Sugita, J. Deshapriya, E. Cloutis, B. Clark, A. Hendrix, A. Sen, M. A. Asad, M. Daly, D. Applin, C. Avdellidou, M. Barucci, K. Becker, C. Bennett, W. Bottke, J. Brodbeck, H. Connolly, M. Delbo’, J. Leon, C. d'Aubigny, K. Edmundson, S. Fornasier, S. Fornasier, V. Hamilton, P. Hasselmann, C. Hergenrother, E. Howell, E. Jawin, H. Kaplan, L. Corre, L. Lim, Jian-Yang Li, P. Michel, J. Molaro, M. Nolan, J. Nolau, M. Pajola, A. Parkinson, M. Popescu, M. Popescu, N. Porter, B. Rizk, J. Rizos, A. Ryan, B. Rozitis, N. Shultz, A. Simon, D. Trang, R. B. V. Auken, C. Wolner, D. Lauretta   +61 more
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On the origin of the Almahata-Sitta meteorite and 2008TC3 asteroid [PDF]

, 2012
Asteroid 2008TC3 was a Near Earth Asteroid that impacted the Earth on 2008 October 7. Meteorites were produced by the break-up of 2008TC3 in the high atmosphere and at present, about 600 meteorites - called Almahata Sitta - coming from 2008TC3 have been ...
Alessandro Morbidelli, Binzel, Bischoff, Bottke, Bottke, Bottke, Bus, Campins, Cellino, Chapman, Clark, Clark, Cloutis, De Leon, Gaffey, Gaffey, Galluccio, Galluccio, Gopel, Hiroi, Horstmann, Ida, Ivanov, Ivezić, Jenniskens, Jenniskens, Johansen, Johansen, Jordi, Julie Gayon-Markt, Kenyon, Marchi, Marco Delbo, Meibom, Melosh, Michel, Mignard, Morbidelli, Morbidelli, Morbidelli, Nesvorný, Paolicchi, Parker, Shaddad, Simone Marchi, Singletary, Spurný, Vernazza, Vokrouhlický, Walsh, Weidenschilling, Welten, Wetherill, Wetherill   +53 more
core   +2 more sources

Asteroid impact, not volcanism, caused the end-Cretaceous dinosaur extinction

Proceedings of the National Academy of Sciences of the United States of America, 2020
Significance We present a quantitative test of end-Cretaceous extinction scenarios and how these would have affected dinosaur habitats. Combining climate and ecological modeling tools, we demonstrate a substantial detrimental effect on dinosaur habitats ...
Alfio Alessandro Chiarenza, A. Farnsworth, P. Mannion, D. Lunt, P. Valdes, J. Morgan, P. Allison   +6 more
semanticscholar   +1 more source

Chemistry in Retrieved Ryugu Asteroid Samples Revealed by Non-Invasive X-ray Microanalyses: Pink-Beam Fluorescence CT and Tender-Energy Absorption Spectroscopy

Geosciences
The Hayabusa2 space mission recently retrieved 5.4 g of material from asteroid Ryugu, providing the first direct access to pristine material from a carbonaceous asteroid. This study employs a novel combination of non-invasive synchrotron X-ray techniques
Paul Northrup, Ryan Tappero, Timothy D. Glotch, George J. Flynn, Mehmet Yesiltas, Yoko Kebukawa, Leonard Flores, Marina E. Gemma, Gavin Piccione   +8 more
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Asteroid Photometric Phase Functions From Bayesian Lightcurve Inversion

Frontiers in Astronomy and Space Sciences, 2022
Photometry is an important tool for characterizing the physical properties of asteroids. An asteroid’s photometric lightcurve and phase curve refer to the variation of the asteroid’s disk-integrated brightness in time and in phase angle (the Sun-asteroid-
Karri Muinonen, Karri Muinonen, Elizaveta Uvarova, Julia Martikainen, Antti Penttilä, Alberto Cellino, Xiaobin Wang, Xiaobin Wang   +7 more
doaj   +1 more source

Design of a Formation of Solar Pumped Lasers for Asteroid Deflection [PDF]

, 2012
This paper presents the design of a multi-spacecraft system for the deflection of asteroids. Each spacecraft is equipped with a fibre laser and a solar concentrator. The laser induces the sublimation of a portion of the surface of the asteroid.
Christie Alisa Maddock, Colombo, Colombo, Delbò, Gong, Hu, Jeong, Jeong, Kahle, Maddock, Massimiliano Vasile, Park, Phipps, Phipps, Rossi, Sanchez Cuartielles, Toon, Vasile, Vasile, Vasile, Vasile, Wang, Weksler, Yoo   +23 more
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The surface composition of asteroid 162173 Ryugu from Hayabusa2 near-infrared spectroscopy

Science, 2019
Hayabusa2 at the asteroid Ryugu Asteroids fall to Earth in the form of meteorites, but these provide little information about their origins. The Japanese mission Hayabusa2 is designed to collect samples directly from the surface of an asteroid and return
K. Kitazato, R. Milliken, T. Iwata, M. Abe, M. Ohtake, S. Matsuura, T. Arai, Y. Nakauchi, T. Nakamura, M. Matsuoka, H. Senshu, N. Hirata, T. Hiroi, C. Pilorget, R. Brunetto, F. Poulet, L. Riu, J. Bibring, D. Takir, D. Domingue, F. Vilas, M. Barucci, D. Perna, E. Palomba, A. Galiano, K. Tsumura, T. Osawa, M. Komatsu, A. Nakato, T. Arai, N. Takato, T. Matsunaga, Y. Takagi, K. Matsumoto, T. Kouyama, Y. Yokota, E. Tatsumi, N. Sakatani, Y. Yamamoto, T. Okada, S. Sugita, R. Honda, T. Morota, S. Kameda, H. Sawada, C. Honda, M. Yamada, H. Suzuki, K. Yoshioka, M. Hayakawa, K. Ogawa, Y. Cho, K. Shirai, Y. Shimaki, N. Hirata, A. Yamaguchi, N. Ogawa, F. Terui, T. Yamaguchi, Y. Takei, T. Saiki, S. Nakazawa, S. Tanaka, M. Yoshikawa, S. Watanabe, Y. Tsuda   +65 more
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Asteroid taxonomic signatures from photometric phase curves

, 2012
We explore the correlation between an asteroid's taxonomy and photometric phase curve using the H, G12 photometric phase function, with the shape of the phase function described by the single parameter G12.
Antti Penttilä, Barucci, Belskaya, Binzel, Bus, Capaccioni, Cellino, Cristina A. Thomas, Dagmara Anna Oszkiewicz, David E. Trilling, DeMeo, Edward Bowell, Florczak, Florczak, Gehrels, Goidet-Devel, Gradie, Harris, Harris, Howell, Ivežić, Kaasalainen, Kaasalainen, Karri Muinonen, L.H. Wasserman, Lagerkvist, Lazzaro, Lazzaro, Mothé-Diniz, Mothé-Diniz, Muinonen, Muinonen, Nelder, Oszkiewicz, Parker, Scaltriti, Tedesco, Thomas, Tuomo Pieniluoma, Xu, Yoshida   +40 more
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Evidence for widespread hydrated minerals on asteroid (101955) Bennu

Nature Astronomy, 2019
Early spectral data from the Origins, Spectral Interpretation, Resource Identification, and Security-Regolith Explorer (OSIRIS-REx) mission reveal evidence for abundant hydrated minerals on the surface of near-Earth asteroid (101955) Bennu in the form of
V. Hamilton, A. Simon, P. Christensen, D. C. Reuter, B. Clark, M. Barucci, N. Bowles, W. Boynton, J. Brucato, E. Cloutis, H. Connolly, K. D. Donaldson Hanna, J. Emery, H. Enos, S. Fornasier, C. Haberle, R. Hanna, E. S. Howell, H. Kaplan, L. P. Keller, C. Lantz, J.-Y. Li, L. Lim, T. McCoy, F. Merlin, M. Nolan, A. Praet, B. Rozitis, S. Sandford, D. L. Schrader, C. A. Thomas, X. Zou, D. Lauretta, D. E. J. D. N. E. E. K. L. T. C. R. A. S. D. T. S. A. Highsmith Small Vokrouhlický Bowles Brown Donaldso, D. Highsmith, J. Small, D. Vokrouhlický, E. Brown, T. Warren, C. Brunet, R. Chicoine, S. Desjardins, D. Gaudreau, T. Haltigin, S. Millington-Veloza, A. Rubi, J. Aponte, N. Gorius, A. Lunsford, B. Allen, J. Grindlay, D. Guevel, D. Hoak, J. Hong, D. L. Schrader, J. Bayron, O. Golubov, P. Sánchez, J. Stromberg, M. Hirabayashi, C. M. Hartzell, S. Oliver, M. Rascon, A. Harch, J. Joseph, S. Squyres, D. Richardson, J. Emery, L. McGraw, R. Ghent, R. Binzel, M. A. Asad, C. L. Johnson, L. Philpott, H. Susorney, R. Hanna, F. Ciceri, A. R. Hildebrand, E.-M. Ibrahim, L. Breitenfeld, T. Glotch, A. D. Rogers, S. Ferrone, H. Campins, Y. Fernandez, W. Chang, A. Cheuvront, D. Trang, S. Tachibana, H. Yurimoto, G. Poggiali, M. Pajola, E. Dotto, E. Mazzotta Epifani, M. K. Crombie, M. Izawa, J. de León, J. Licandro, J. L. R. Garcia, S. Clemett, K. Thomas-Keprta, S. Van wal, M. Yoshikawa, J. Bellerose, S. Bhaskaran, C. Boyles, S. Chesley, C. M. Elder, D. Farnocchia, A. Harbison, B. Kennedy, A. Knight, N. Martinez-Vlasoff, N. Mastrodemos, T. McElrath, W. Owen, R. Park, B. Rush, L. Swanson, Y. Takahashi, D. Velez, K. Yetter, C. Thayer, C. Adam, P. Antreasian, J. Bauman, C. Bryan, B. Carcich, M. Corvin, J. Geeraert, J. Hoffman, J. Leonard, E. Lessac-Chenen, A. Levine, J. McAdams, L. McCarthy, D. Nelson, B. Page, J. Pelgrift, E. Sahr, K. Stakkestad, D. Stanbridge, D. Wibben, B. Williams, K. Williams, P. Wolff, P. Hayne, D. Kubitschek, M. Barucci, J. D. P. Deshapriya, M. Fulchignoni, P. Hasselmann, E. Bierhaus, O. Billett, A. Boggs, B. Buck, S. Carlson-Kelly, J. Cerna, K. Chaffin, E. Church, M. Coltrin, J. Daly, A. Deguzman, R. Dubisher, D. Eckart, D. Ellis, P. Falkenstern, A. Fisher, M. Fisher, P. Fleming, K. Fortney, S. Francis, S. Freund, S. Gonzales, P. Haas, A. Hasten, D. Hauf, A. Hilbert, D. Howell, F. Jaen, N. Jayakody, M. Jenkins, K. Johnson, M. Lefèvre, H. Ma, C. Mario, K. Martin, C. May, M. McGee, B. Miller, C. Miller, G. Miller, A. Mirfakhrai, E. Muhle, C. Norman, R. Olds, C. Parish, M. Ryle, M. Schmitzer, P. Sherman, M. Skeen, M. Šušak, B. Sutter, Q. Tran, C. Welch, R. Witherspoon, J. Wood, J. Zareski, M. Arvizu-Jakubicki, E. Asphaug, E. Audi, R. Ballouz, R. Bandrowski, K. Becker, T. L. Becker, S. Bendall, C. Bennett, H. Bloomenthal, D. Blum, J. Brodbeck, K. Burke, M. Chojnacki, A. Colpo, J. Contreras, J. Cutts, C. D. Drouet d’Aubigny, D. Dean, D. DellaGiustina, B. Diallo, D. Drinnon, K. Drozd, R. Enos, C. Fellows, T. Ferro, M. R. Fisher, G. Fitzgibbon, M. Fitzgibbon, J. Forelli, T. Forrester, I. Galinsky, R. Garcia, A. Gardner, D. Golish, N. Habib, D. Hamara, D. Hammond, K. Hanley, K. Harshman, C. Hergenrother, K. Herzog, D. Hill, C. Hoekenga, S. Hooven, E. Huettner, A. Janakus, J. Jones, T. Kareta, J. Kidd, K. Kingsbury, S. Balram-Knutson, L. Koelbel, J. Kreiner, D. Lambert, C. Lewin, B. Lovelace, M. Loveridge, M. Lujan, C. Maleszewski, R. Malhotra, K. Marchese, E. Mcdonough, N. Mogk, V. Morrison, E. Morton, R. Munoz, J. Nelson, M. Nolan, J. Padilla, R. Pennington, A. Polit, N. Ramos, V. Reddy, M. Riehl, B. Rizk, H. L. Roper, S. Salazar, S. Schwartz, S. Selznick, N. Shultz, P. H. Smith, S. Stewart, S. Sutton, T. Swindle, Y. Tang, M. Westermann, C. Wolner, D. Worden, T. Zega, Z. Zeszut, A. Bjurstrom, L. Bloomquist, C. Dickinson, E. Keates, J. Liang, V. Nifo, A. Taylor, F. Teti, M. Caplinger, H. Bowles, S. Carter, S. Dickenshied, D. Doerres, T. Fisher, W. Hagee, J. Hill, M. Miner, D. Noss, N. Piacentine, M. Smith, A. Toland, P. Wren, M. Bernacki, D. P. Munoz, S.-i. Watanabe, A. Aqueche, B. Ashman, M. Barker, A. Bartels, K. Berry, B. Bos, R. Burns, A. Calloway, R. Carpenter, N. Castro, R. Cosentino, J. Donaldson, J. Dworkin, J. Elsila Cook, C. Emr, D. Everett, D. Fennell, K. Fleshman, D. Folta, D. Gallagher, J. Garvin, K. Getzandanner, D. Glavin, S. Hull, K. Hyde, H. Ido, A. Ingegneri, N. Jones, P. Kaotira, A. Liounis, C. Lorentson, D. Lorenz, J. Lyzhoft, E. Mazarico, R. Mink, W. Moore, M. Moreau, S. Mullen, J. Nagy, G. Neumann, J. Nuth, D. Poland, L. Rhoads, S. Rieger, D. Rowlands, D. Sallitt, A. Scroggins, G. Shaw, J. Swenson, P. Vasudeva, M. Wasser, R. Zellar, J. Grossman, G. Johnston, M. Morris, J. Wendel, A. Burton, L. McNamara, S. Messenger, K. Nakamura-messenger, A. Nguyen, K. Righter, E. Queen, K. Bellamy, K. Dill, S. Gardner, M. Giuntini, B. Key, J. Kissell, D. Patterson, D. Vaughan, B. Wright, R. Gaskell, L. Le Corre, J. Molaro, E. Palmer, M. Siegler, P. Tricarico, J. Weirich, T. Ireland, K. Tait, P. Bland, S. Anwar, N. Bojorquez-Murphy, G. Mehall, K. Rios, I. Franchi, C. Beddingfield, J. Marshall, D. Brack, A. French, J. McMahon, D. Scheeres, E. Jawin, S. Russell, M. Killgore, W. Bottke, V. Hamilton, K. Walsh, J. Bandfield, B. C. Clark, M. Chodas, M. Lambert, R. A. Masterson, M. Daly, J. Freemantle, J. Seabrook, O. Barnouin, K. Craft, R. Daly, C. Ernst, R. Espiritu, M. Holdridge, M. Jones, A. H. Nair, L. Nguyen, J. Peachey, M. Perry, J. Plescia, J. H. Roberts, R. Steele, R. Turner, J. Backer, K. Edmundson, J. Mapel, M. Milazzo, S. Sides, C. Manzoni, B. May, M. Delbo’, G. Libourel, P. Michel, A. Ryan, F. Thuillet, B. Marty   +458 more
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A Fully Autonomous On-Board GNC Methodology for Small-Body Environments Based on CNN Image Processing and MPCs

Aerospace
The increasing need for autonomy in space exploration missions is becoming more and more relevant in the design of missions to small bodies. The long communication latencies and sensitivity of the system to unplanned environmental perturbations mean ...
Pelayo Peñarroya, Alfredo Escalante, Thomas Frekhaug, Manuel Sanjurjo   +3 more
doaj   +1 more source