NASA Astrobiology

July 2019Crustal 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

May 2019Diversified local CRISPR-Cas immunity to viruses of Sulfolobus islandicus

Pauly, M. D., Bautista, M. A., Black, J. A., & Whitaker, R. J. (2019). Diversified local CRISPR-Cas immunity to viruses of Sulfolobus islandicus. Philosophical Transactions of the Royal Society B: Biological Sciences, 374(1772), 20180093. doi:10.1098/rstb.2018.0093

April 2019A role for phosphorus redox in emerging and modern biochemistry

Pasek, M. (2019). A role for phosphorus redox in emerging and modern biochemistry. Current Opinion in Chemical Biology, 49, 53–58. doi:10.1016/j.cbpa.2018.09.018

Implications of Philae Magnetometry Measurements at Comet 67P/Churyumov–Gerasimenko for the Nebular Field of the Outer Solar System

Biersteker, J. B., Weiss, B. P., Heinisch, P., Herčik, D., Glassmeier, K-H., & Auster, H-U. (2019). Implications of Philae Magnetometry Measurements at Comet 67P/Churyumov–Gerasimenko for the Nebular Field of the Outer Solar System. The Astrophysical Journal, 875(1), 39. doi:10.3847/1538-4357/ab0f2a

Geochemical Sources and Availability of Amidophosphates on the Early Earth

Gibard, C., Jiménez, E. I., Kee, T., Krishnamurthy, R., & Pasek, M. (2019). Geochemical Sources and Availability of Amidophosphates on the Early Earth. Angewandte Chemie International Edition. doi:10.1002/anie.201903808

Searching for Atmospheric Bioindicators in Planets around the Two Nearby Stars, Proxima Centauri and Epsilon Eridani—Test Cases for Retrieval of Atmospheric Gases with Infrared Spectroscopy

Léger, A., Defrère, D., Muñoz, A. G., Godolt, M., Grenfell, J. L., Rauer, H., & Tian, F. (2019). Searching for Atmospheric Bioindicators in Planets around the Two Nearby Stars, Proxima Centauri and Epsilon Eridani—Test Cases for Retrieval of Atmospheric Gases with Infrared Spectroscopy. Astrobiology. doi:10.1089/ast.2018.1938

Early diagenetic sequestration of microbial mat lipid biomarkers through covalent binding into insoluble macromolecular organic matter (IMOM) as revealed by sequential chemolysis and catalytic hydropyrolysis

Lee, C., Love, G. D., Jahnke, L. L., Kubo, M. D., & Des Marais, D. J. (2019). Early diagenetic sequestration of microbial mat lipid biomarkers through covalent binding into insoluble macromolecular organic matter (IMOM) as revealed by sequential chemolysis and catalytic hydropyrolysis. Organic Geochemistry. doi:10.1016/j.orggeochem.2019.04.002

Oxygen and Al‐Mg isotopic compositions of grossite‐bearing refractory inclusions from CO 3 chondrites

Simon, S. B., Krot, A. N., & Nagashima, K. (2019). Oxygen and Al‐Mg isotopic compositions of grossite‐bearing refractory inclusions from CO 3 chondrites. Meteoritics & Planetary Science. doi:10.1111/maps.13282

March 2019Surficial weathering of kaolin regolith in a subtropical climate: Implications for supergene pedogenesis and bedrock argillization

Fang, Q., Hong, H., Furnes, H., Chorover, J., Luo, Q., Zhao, L., & Algeo, T. J. (2019). Surficial weathering of kaolin regolith in a subtropical climate: Implications for supergene pedogenesis and bedrock argillization. Geoderma, 337, 225–237. doi:10.1016/j.geoderma.2018.09.020

Unusually variable paleocommunity composition in the oldest metazoan fossil assemblages

Finnegan, S., Gehling, J. G., & Droser, M. L. (2019). Unusually variable paleocommunity composition in the oldest metazoan fossil assemblages. Paleobiology, None, 1–11. doi:10.1017/pab.2019.1

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