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Mostrando 841 - 860 Resultados de 962 Para Buscar '"Solar System"', tiempo de consulta: 0.37s Limitar resultados
  1. 841
    “…Calcium-aluminum–rich inclusions (CAIs) in meteorites carry crucial information about the environmental conditions of the nascent Solar System prior to planet formation. Based on models of 50V–(10)Be co-production by in-situ irradiation, CAIs are considered to have formed within ~0.1 AU from the proto-Sun. …”
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    Fossil records of early solar irradiation and cosmolocation of the CAI factory: A reappraisal
  2. 842
    por Putirka, Keith D., Xu, Siyi
    Publicado 2021
    “…Instead, polluted white dwarfs reveal greater planetary variety in our solar neighborhood than currently appreciated, with consequently unique planetary accretion and differentiation paths that have no direct counterparts in our Solar System. These require new rock classification schemes, for quartz + orthopyroxene and periclase + olivine assemblages, which are proposed here.…”
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    Polluted white dwarfs reveal exotic mantle rock types on exoplanets in our solar neighborhood
  3. 843
    “…Identifying solar system surface properties of celestial bodies requires the conducting of many tests and experiments in conditions similar to those found on various objects. …”
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    Vision-Based Approach in Contact Modelling between the Footpad of the Lander and the Analogue Representing Surface of Phobos
  4. 844
    “…Here, melting experiments were performed using a synthetic iron-free basalt at oxygen levels representing reducing (log fO(2) = −11.5 and −7) and oxidizing (log fO(2) = −0.7) interior conditions observed in our solar system. Results show that the liquidus of iron-free basalt at a pressure of 1 atm is lowered by 105 ± 10 °C over an 11 log fO(2) units increase in oxygen abundance. …”
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    Oxygen controls on magmatism in rocky exoplanets
  5. 845
    “…Pluto, Titan, and Triton make up a unique class of solar system bodies, with icy surfaces and chemically reducing atmospheres rich in organic photochemistry and haze formation. …”
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    A bimodal distribution of haze in Pluto’s atmosphere
  6. 846
    “…Unlike the Earth, many moons in the Solar System are tidally locked to their parent bodies, and many also contain saline, subsurface oceans. …”
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    Induced magnetic moments from a nearly spherical ocean
  7. 847
    “…Monohydrate sulfate kieserites (M (2+)SO(4)·H(2)O) and their solid solutions are essential constituents on the surface of Mars and most likely also on Galilean icy moons in our solar system. Phase stabilities of end-member representatives (M (2+) = Mg, Fe, Co, Ni) have been examined crystallographically using single-crystal X-ray diffraction at 1 bar and temperatures down to 15 K, by means of applying open He cryojet techniques at in-house laboratory instrumentation. …”
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    Crystallography relevant to Mars and Galilean icy moons: crystal behavior of kieserite-type monohydrate sulfates at extraterrestrial conditions down to 15 K
  8. 848
    “…Given the similarity in the molecular distribution of pyrimidines in meteorites and those in photon-processed interstellar ice analogues, some of these derivatives could have been generated by photochemical reactions prevailing in the interstellar medium and later incorporated into asteroids during solar system formation. This study demonstrates that a diversity of meteoritic nucleobases could serve as building blocks of DNA and RNA on the early Earth.…”
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    Identifying the wide diversity of extraterrestrial purine and pyrimidine nucleobases in carbonaceous meteorites
  9. 849
    “…Planetary protection is the practice of preventing forward and backward contamination of solar system bodies. Spacecraft and associated surfaces are sampled to ensure compliance with bioburden requirements. …”
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    Qualification of Membrane Filtration for Planetary Protection Flight Implementation
  10. 850
    “…Further, the data provide unambiguous evidence for the operation of silicate differentiation processes on Earth during the lifetime of (182)Hf, that is, the first 60 million y after solar system formation. The striking isotopic similarity between recycled protocrust and the low-(182)W endmember of modern OIBs might also constitute the missing link bridging (182)W isotope systematics in Archean and young mantle-derived rocks.…”
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    Long-term preservation of Hadean protocrust in Earth’s mantle
  11. 851
    “…Its compositional and structural properties, except for the H/C ratio, resemble those of other Solar System reservoirs of organics—from organic material in the Saturnian ring rain to meteoritic soluble and insoluble organic matter –, which is compatible with a shared prestellar history.…”
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    Identification and characterization of a new ensemble of cometary organic molecules
  12. 852
    “…Future missions to the ice giants may therefore be capable of discovering subsurface oceans, thereby adding to the family of known “ocean worlds” in our Solar System. Here, we assess magnetic induction as a technique for investigating subsurface oceans within the major moons of Uranus. …”
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    In Search of Subsurface Oceans Within the Uranian Moons
  13. 853
    “…In Space, cosmic radiation is a strong, ubiquitous form of energy with constant flux, and the ability to harness it could greatly enhance the energy-autonomy of expeditions across the solar system. At the same time, radiation is the greatest permanent health risk for humans venturing into deep space. …”
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    Cultivation of the Dematiaceous Fungus Cladosporium sphaerospermum Aboard the International Space Station and Effects of Ionizing Radiation
  14. 854
    por Chabot, Nancy L., Zhang, Bidong
    Publicado 2021
    “…Future applications of the revised trapped melt model to other magmatic iron meteorite groups can enable comparisons between the core compositions and crystallization processes across the early solar system.…”
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    A revised trapped melt model for iron meteorites applied to the IIIAB group
  15. 855
    “…This research presents spore survival data and a corresponding model pointing to a re-evaluation of the recommended HMR exposure of 500°C for 0.5 s, while simultaneously meeting requirements on the forward biological contamination of solar system bodies and opening up design possibilities for future spacecraft hardware.…”
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    Establishing Sterility Assurance for Bacillus canaveralius 29669 Spores Under High Heat Exposure
  16. 856
    “…Our results thus suggest that H(2) can be an important driver for organic evolution in water-rock differentiated CC parent bodies as well as the Solar System icy bodies that might possess similar pH and redox gradients.…”
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    Geoelectrochemistry-driven alteration of amino acids to derivative organics in carbonaceous chondrite parent bodies
  17. 857
    “…A large set of nucleobases and amino acids is found in meteorites, implying that several chemical reservoirs are present in the solar system. The “geochemical continuity” hypothesis explores how protometabolic paths developed from so-called “bricks” in an enzyme-free prebiotic world and how they affected the origins of life. …”
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    Building the uracil skeleton in primitive ponds at the origins of life: carbamoylation of aspartic acid
  18. 858
    por Adam, R., Ade, P.A.R., Aghanim, N., Arnaud, M., Ashdown, M., Aumont, J., Baccigalupi, C., Banday, A.J., Barreiro, R.B., Bartolo, N., Battaner, E., Benabed, K., Benoît, A., Benoit-Lévy, A., Bernard, J.-P., Bersanelli, M., Bertincourt, B., Bielewicz, P., Bock, J.J., Bonavera, L., Bond, J.R., Borrill, J., Bouchet, F.R., Boulanger, F., Bucher, M., Burigana, C., Calabrese, E., Cardoso, J.-F., Catalano, A., Challinor, A., Chamballu, A., Chiang, H.C., Christensen, P.R., Clements, D.L., Colombi, S., Colombo, L.P.L., Combet, C., Couchot, F., Coulais, A., Crill, B.P., Curto, A., Cuttaia, F., Danese, L., Davies, R.D., Davis, R.J., de Bernardis, P., de Rosa, A., de Zotti, G., Delabrouille, J., Delouis, J.-M., Désert, F.-X., Diego, J.M., Dole, H., Donzelli, S., Doré, O., Douspis, M., Ducout, A., Dupac, X., Efstathiou, G., Elsner, F., Enßlin, T.A., Eriksen, H.K., Falgarone, E., Fergusson, J., Finelli, F., Forni, O., Frailis, M., Fraisse, A.A., Franceschi, E., Frejsel, A., Galeotta, S., Galli, S., Ganga, K., Ghosh, T., Giard, M., Giraud-Héraud, Y., Gjerløw, E., González-Nuevo, J., Górski, K.M., Gratton, S., Gruppuso, A., Gudmundsson, J.E., Hansen, F.K., Hanson, D., Harrison, D.L., Henrot-Versillé, S., Herranz, D., Hildebrandt, S.R., Hivon, E., Hobson, M., Holmes, W.A., Hornstrup, A., Hovest, W., Huffenberger, K.M., Hurier, G., Jaffe, A.H., Jaffe, T.R., Jones, W.C., Juvela, M., Keihänen, E., Keskitalo, R., Kisner, T.S., Kneissl, R., Knoche, J., Kunz, M., Kurki-Suonio, H., Lagache, G., Lamarre, J.-M., Lasenby, A., Lattanzi, M., Lawrence, C.R., Le Jeune, M., Leahy, J.P., Lellouch, E., Leonardi, R., Lesgourgues, J., Levrier, F., Liguori, M., Lilje, P.B., Linden-Vørnle, M., López-Caniego, M., Lubin, P.M., Macías-Pérez, J.F., Maggio, G., Maino, D., Mandolesi, N., Mangilli, A., Maris, M., Martin, P.G., Martínez-González, E., Masi, S., Matarrese, S., McGehee, P., Melchiorri, A., Mendes, L., Mennella, A., Migliaccio, M., Mitra, S., Miville-Deschênes, M.-A., Moneti, A., Montier, L., Moreno, R., Morgante, G., Mortlock, D., Moss, A., Mottet, S., Munshi, D., Murphy, J.A., Naselsky, P., Nati, F., Natoli, P., Netterfield, C.B., Nørgaard-Nielsen, H.U., Noviello, F., Novikov, D., Novikov, I., Oxborrow, C.A., Paci, F., Pagano, L., Pajot, F., Paoletti, D., Pasian, F., Patanchon, G., Pearson, T.J., Perdereau, O., Perotto, L., Perrotta, F., Pettorino, V., Piacentini, F., Piat, M., Pierpaoli, E., Pietrobon, D., Plaszczynski, S., Pointecouteau, E., Polenta, G., Pratt, G.W., Prézeau, G., Prunet, S., Puget, J.-L., Rachen, J.P., Reinecke, M., Remazeilles, M., Renault, C., Renzi, A., Ristorcelli, I., Rocha, G., Rosset, C., Rossetti, M., Roudier, G., Rusholme, B., Sandri, M., Santos, D., Sauvé, A., Savelainen, M., Savini, G., Scott, D., Seiffert, M.D., Shellard, E.P.S., Spencer, L.D., Stolyarov, V., Stompor, R., Sudiwala, R., Sutton, D., Suur-Uski, A.-S., Sygnet, J.-F., Tauber, J.A., Terenzi, L., Toffolatti, L., Tomasi, M., Tucci, M., Tuovinen, J., Valenziano, L., Valiviita, J., Van Tent, B., Vibert, L., Vielva, P., Villa, F., Wade, L.A., Wandelt, B.D., Watson, R., Wehus, I.K., Yvon, D., Zacchei, A.
    Publicado 2015
    “…This source of calibration only depends on the satellite velocity with respect to the solar system and permits an independent measurement of the amplitude of the CMB solar dipole (3364.5 +/- 0.8 \mu K) which is 1\sigma\ higher than the WMAP measurement with a direction that is consistent between both experiments. …”
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    Planck 2015 results. VIII. High Frequency Instrument data processing: Calibration and maps
  19. 859
    por Lang, Kenneth R
    Publicado 2006
    “…Some of these popular books, which include Sun, Earth and Sky, Wanderers in Space, the Cambridge Encyclopedia of the Sun and the Cambridge Guide to the Solar System, have been translated into seven languages.…”
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    A Companion to Astronomy and Astrophysics: Chronology and Glossary with Data Tables
  20. 860
    por Bignami, Giovanni Fabrizio
    Publicado 2006
    “…In parallel to groung-based experiments, we are now learning to exploit from space other channels, from gravitational waves to cosmic rays and more, including verifications (impossible on our Earth) of fundamental physical laws and in situ exploration of solar system objects. Especially with space astronomy, we may also be on the brink of discovering “new physics”, which might be necessary since, for example, we now know that our beloved baryons make up only a tiny fraction of our Universe. …”
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    Deep space telescopes
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