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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January 2020Polyesters as a Model System for Building Primitive Biologies from Non-Biological Prebiotic Chemistry

Chandru, Mamajanov, Cleaves, & Jia (2020). Polyesters as a Model System for Building Primitive Biologies from Non-Biological Prebiotic Chemistry. Life, 10(1), 6. doi:10.3390/life10010006

Lifetimes of interstellar dust from cosmic ray exposure ages of presolar silicon carbide

Heck, P. R., Greer, J., Kööp, L., Trappitsch, R., Gyngard, F., Busemann, H., … Wieler, R. (2020). Lifetimes of interstellar dust from cosmic ray exposure ages of presolar silicon carbide. Proceedings of the National Academy of Sciences, None, 201904573. doi:10.1073/pnas.1904573117

On impact and volcanism across the Cretaceous-Paleogene boundary

Hull, P. M., Bornemann, A., Penman, D. E., Henehan, M. J., Norris, R. D., Wilson, P. A., … Zachos, J. C. (2020). On impact and volcanism across the Cretaceous-Paleogene boundary. Science, 367(6475), 266–272. doi:10.1126/science.aay5055

The Bridgmanite–Akimotoite–Majorite Triple Point Determined in Large Volume Press and Laser-Heated Diamond Anvil Cell

Kulka, B. L., Dolinschi, J. D., Leinenweber, K. D., Prakapenka, V. B., & Shim, S-H. (2020). The Bridgmanite–Akimotoite–Majorite Triple Point Determined in Large Volume Press and Laser-Heated Diamond Anvil Cell. Minerals, 10(1), 67. doi:10.3390/min10010067

Nanopore Sequencing of an Expanded Genetic Alphabet Reveals High-Fidelity Replication of a Predominantly Hydrophobic Unnatural Base Pair

Ledbetter, M. P., Craig, J. M., Karadeema, R. J., Noakes, M. T., Kim, H. C., Abell, S. J., … Romesberg, F. E. (2020). Nanopore Sequencing of an Expanded Genetic Alphabet Reveals High-Fidelity Replication of a Predominantly Hydrophobic Unnatural Base Pair. Journal of the American Chemical Society, 142(5), 2110–2114. doi:10.1021/jacs.9b09808

Quantifying the Bayesian Evidence for a Planet in Radial Velocity Data

Nelson, B. E., Ford, E. B., Buchner, J., Cloutier, R., Díaz, R. F., Faria, J. P., … Rukdee, S. (2020). Quantifying the Bayesian Evidence for a Planet in Radial Velocity Data. The Astronomical Journal, 159(2), 73. doi:10.3847/1538-3881/ab5190

Evidence for the charge disproportionation of iron in extraterrestrial bridgmanite

Bindi, L., Shim, S-H., Sharp, T. G., & Xie, X. (2020). Evidence for the charge disproportionation of iron in extraterrestrial bridgmanite. Science Advances, 6(2), eaay7893. doi:10.1126/sciadv.aay7893

Chemistry of Abiotic Nucleotide Synthesis

Yadav, M., Kumar, R., & Krishnamurthy, R. (2020). Chemistry of Abiotic Nucleotide Synthesis. Chemical Reviews. doi:10.1021/acs.chemrev.9b00546

Ceres: Astrobiological Target and Possible Ocean World

Castillo-Rogez, J. C., Neveu, M., Scully, J. E. C., House, C. H., Quick, L. C., Bouquet, A., … Young, E. (2020). Ceres: Astrobiological Target and Possible Ocean World. Astrobiology. doi:10.1089/ast.2018.1999

Metastable equilibrium of substitution reactions among oxygen- and nitrogen-bearing organic compounds at hydrothermal conditions

Robinson, K. J., Fecteau, K. M., Gould, I. R., Hartnett, H. E., Williams, L. B., & Shock, E. L. (2020). Metastable equilibrium of substitution reactions among oxygen- and nitrogen-bearing organic compounds at hydrothermal conditions. Geochimica et Cosmochimica Acta. doi:10.1016/j.gca.2019.12.030

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