NASA Astrobiology

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Emerging Trends in Comet Taxonomy. “Emerging trends and a comet taxonomy based on the volatile chemistry measured in thirty comets with high-resolution infrared spectroscopy between 1997 and 2013.” in Icarus

Cycles of Glaciation on Ancient Mars. “Climate Cycling on Early Mars Caused by the Carbonate-Silicate Cycle” in Earth and Planetary Astrophysics.

Methane Muted: How Did Early Earth Stay Warm?. “A proper accounting of biogeochemical cycles in the oceans reveals that methane has a much more powerful foe than oxygen.” in PNAS

Emerging Trends in Comet Taxonomy“Emerging trends and a comet taxonomy based on the volatile chemistry measured in thirty comets with high-resolution infrared spectroscopy between 1997 and 2013.” in Icarus01/03

Cycles of Glaciation on Ancient Mars“Climate Cycling on Early Mars Caused by the Carbonate-Silicate Cycle” in Earth and Planetary Astrophysics.02/03

Methane Muted: How Did Early Earth Stay Warm?“A proper accounting of biogeochemical cycles in the oceans reveals that methane has a much more powerful foe than oxygen.” in PNAS03/03

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August 2019Mineralogy, petrography, and oxygen and aluminum-magnesium isotope systematics of grossite-bearing refractory inclusions

Krot, A. N., Nagashima, K., Simon, S. B., Ma, C., Connolly, H. C., Huss, G. R., … Bizzarro, M. (2019). Mineralogy, petrography, and oxygen and aluminum-magnesium isotope systematics of grossite-bearing refractory inclusions. Geochemistry, None, 125529. doi:10.1016/j.chemer.2019.08.001

Thermal Infrared Imaging of MWC 758 with the Large Binocular Telescope: Planetary-driven Spiral Arms?

Wagner, K., Stone, J. M., Spalding, E., Apai, D., Dong, R., Ertel, S., … Webster, R. (2019). Thermal Infrared Imaging of MWC 758 with the Large Binocular Telescope: Planetary-driven Spiral Arms? The Astrophysical Journal, 882(1), 20. doi:10.3847/1538-4357/ab32ea

In situ Ion Irradiation and Heating Experiments in the Transmission Electron Microscope: Simulations of Dust Processing in Circumstellar Environments

Haenecour, P., Thompson, M. S., Zega, T. J., Howe, J. Y., & Chen, W-Y. (2019). In situ Ion Irradiation and Heating Experiments in the Transmission Electron Microscope: Simulations of Dust Processing in Circumstellar Environments. Microscopy and Microanalysis, 25(S2), 2454–2455. doi:10.1017/s143192761901300x

Hidden Concepts in the History and Philosophy of Origins-of-Life Studies: a Workshop Report

Mariscal, C., Barahona, A., Aubert-Kato, N., Aydinoglu, A. U., Bartlett, S., Cárdenas, M. L., … James Cleaves, H. (2019). Hidden Concepts in the History and Philosophy of Origins-of-Life Studies: a Workshop Report. Origins of Life and Evolution of Biospheres. doi:10.1007/s11084-019-09580-x

Constraining the Solar System's Debris Disk with In Situ New Horizons Measurements from the Edgeworth–Kuiper Belt

Poppe, A. R., Lisse, C. M., Piquette, M., Zemcov, M., Horányi, M., James, D., … Stern, S. A. (2019). Constraining the Solar System's Debris Disk with In Situ New Horizons Measurements from the Edgeworth–Kuiper Belt. The Astrophysical Journal, 881(1), L12. doi:10.3847/2041-8213/ab322a

Aberration-Corrected STEM Analysis of Impurities in Cosmic Nanodiamonds and Synthetic Analogs

Stroud, R. M. (2019). Aberration-Corrected STEM Analysis of Impurities in Cosmic Nanodiamonds and Synthetic Analogs. Microscopy and Microanalysis, 25(S2), 1736–1737. doi:10.1017/s1431927619009413

Cosmic dust fluxes in the atmospheres of Earth, Mars, and Venus

Carrillo-Sánchez, J. D., Gómez-Martín, J. C., Bones, D. L., Nesvorný, D., Pokorný, P., Benna, M., … Plane, J. M. C. (2019). Cosmic dust fluxes in the atmospheres of Earth, Mars, and Venus. Icarus, None, 113395. doi:10.1016/j.icarus.2019.113395

Chromium isotopes in marine hydrothermal sediments

Bauer, K. W., Cole, D. B., Asael, D., Francois, R., Calvert, S. E., Pouton, S. W., … Crowe, S. A. (2019). Chromium isotopes in marine hydrothermal sediments. Chemical Geology, None, 119286. doi:10.1016/j.chemgeo.2019.119286

A Stark contrast to modern Earth: Phosphate mineral transformation and nucleoside phosphorylation in an iron and cyanide‐rich Early Earth scenario

Burcar, B., Castañeda, A., Lago, J., Daniels, M., Pasek, M., Hud, N., … Menor-Salvan, C. (2019). A Stark contrast to modern Earth: Phosphate mineral transformation and nucleoside phosphorylation in an iron and cyanide‐rich Early Earth scenario. Angewandte Chemie. doi:10.1002/ange.201908272

Planet–planet scattering as the source of the highest eccentricity exoplanets

Carrera, D., Raymond, S. N., & Davies, M. B. (2019). Planet–planet scattering as the source of the highest eccentricity exoplanets. Astronomy & Astrophysics, 629, L7. doi:10.1051/0004-6361/201935744

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