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Showing 1–4 of 4 results
Advanced filters: Author: C. Engrand Clear advanced filters

  • Oxygen contained within cosmic spherules is sourced from the atmosphere, making micrometeorites a possible archive for past atmospheric conditions. Here, Packet al. compare the isotopic composition of oxygen in cosmic spherules from Antarctica with that of the troposphere, and validate the value of this archive.

    • Andreas Pack
    • Andres Höweling
    • Luigi Folco
    ResearchOpen Access
    Nature Communications
    Volume: 8, P: 1-7

  • The COSIMA mass spectrometer on the Rosetta spacecraft has analysed the solid organic matter found in dust particles emitted by comet 67P/Churyumov–Gerasimenko; this matter is similar to the insoluble organic matter extracted from carbonaceous chondrites such as the Murchison meteorite, but is perhaps more primitive.

    • Nicolas Fray
    • Anaïs Bardyn
    • Martin Hilchenbach
    Research
    Nature
    Volume: 538, P: 72-74

  • Grains collected from comet 67P/Churyumov-Gerasimenko by the Rosetta mission come from a dusty crust that is predicted to be imminently shed as the comet nears the Sun; the grains are high in sodium and fluffy, not icy, suggesting that they are the precursors of interplanetary dust particles.

    • Rita Schulz
    • Martin Hilchenbach
    • Boris Zaprudin
    Research
    Nature
    Volume: 518, P: 216-218