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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July 2019Orbital Stability and Precession Effects in the Kepler-89 System

Kane, S. R. (2019). Orbital Stability and Precession Effects in the Kepler-89 System. The Astronomical Journal, 158(2), 72. doi:10.3847/1538-3881/ab2a09

The Pressure and Temperature Limits of Likely Rocky Exoplanets

Unterborn, C. T., & Panero, W. R. (2019). The Pressure and Temperature Limits of Likely Rocky Exoplanets. Journal of Geophysical Research: Planets, 124(7), 1704–1716. doi:10.1029/2018je005844

Probing the Geological Source and Biological Fate of Hydrogen in Yellowstone Hot Springs

Lindsay, M. R., Colman, D. R., Amenabar, M. J., Fristad, K. E., Fecteau, K. M., Debes, R. V., … Boyd, E. S. (2019). Probing the Geological Source and Biological Fate of Hydrogen in Yellowstone Hot Springs. Environmental Microbiology. doi:10.1111/1462-2920.14730

Updating Planetary Protection Considerations and Policies for Mars Sample Return

Uhran, B., Conley, C., & Andy Spry, J. (2019). Updating Planetary Protection Considerations and Policies for Mars Sample Return. Space Policy. doi:10.1016/j.spacepol.2019.04.001

Systems Analysis for Peptide Systems Chemistry

Grover, M. A., Hsieh, M-C., & Lynn, D. G. (2019). Systems Analysis for Peptide Systems Chemistry. Life, 9(3), 55. doi:10.3390/life9030055

Crustal fracturing, unconformities, and barite deposition, 3.26–3.23 Ga, Barberton Greenstone Belt, South Africa

Lowe, D. R., Drabon, N., & Byerly, G. R. (2019). Crustal fracturing, unconformities, and barite deposition, 3.26–3.23 Ga, Barberton Greenstone Belt, South Africa. Precambrian Research, 327, 34–46. doi:10.1016/j.precamres.2019.02.024

Quantitative Analysis of Glycine Oligomerization by Ion-Pair Chromatography

Campbell, T. D., Febrian, R., Kleinschmidt, H. E., Smith, K. A., & Bracher, P. J. (2019). Quantitative Analysis of Glycine Oligomerization by Ion-Pair Chromatography. ACS Omega, 4(7), 12745–12752. doi:10.1021/acsomega.9b01492

Carbon isotopic composition of lipid biomarkers from an endoevaporitic gypsum crust microbial mat reveals cycling of mineralized organic carbon

Jahnke, L. L., & Des Marais, D. J. (2019). Carbon isotopic composition of lipid biomarkers from an endoevaporitic gypsum crust microbial mat reveals cycling of mineralized organic carbon. Geobiology. doi:10.1111/gbi.12355

Modeling a Carrington-scale Stellar Superflare and Coronal Mass Ejection from ${\kappa }^{1}{Cet}$

Lynch, B. J., Airapetian, V. S., DeVore, C. R., Kazachenko, M. D., Lüftinger, T., Kochukhov, O., … Abbett, W. P. (2019). Modeling a Carrington-scale Stellar Superflare and Coronal Mass Ejection from ${\kappa }^{1}{Cet}$. The Astrophysical Journal, 880(2), 97. doi:10.3847/1538-4357/ab287e

Extracellular superoxide production by key microbes in the global ocean

Sutherland, K. M., Coe, A., Gast, R. J., Plummer, S., Suffridge, C. P., Diaz, J. M., … Hansel, C. M. (2019). Extracellular superoxide production by key microbes in the global ocean. Limnology and Oceanography. doi:10.1002/lno.11247

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