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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June 2020Aluminosilicate haloes preserve complex life approximately 800 million years ago

Anderson, R. P., Tosca, N. J., Cinque, G., Frogley, M. D., Lekkas, I., Akey, A., … Briggs, D. E. G. (2020). Aluminosilicate haloes preserve complex life approximately 800 million years ago. Interface Focus, 10(4), 20200011. doi:10.1098/rsfs.2020.0011

Geochemical and Stable Fe Isotopic Analysis of Dissimilatory Microbial Iron Reduction in Chocolate Pots Hot Spring, Yellowstone National Park

Fortney, N. W., Beard, B. L., Hutchings, J. A., Shields, M. R., Bianchi, T. S., Boyd, E. S., … Roden, E. E. (2020). Geochemical and Stable Fe Isotopic Analysis of Dissimilatory Microbial Iron Reduction in Chocolate Pots Hot Spring, Yellowstone National Park. Astrobiology. doi:10.1089/ast.2019.2058

Mainly on the Plane: Deep Subsurface Bacterial Proteins Bind and Alter Clathrate Structure

Johnson, A. M., Huard, D. J. E., Kim, J., Raut, P., Dai, S., Lieberman, R. L., & Glass, J. B. (2020). Mainly on the Plane: Deep Subsurface Bacterial Proteins Bind and Alter Clathrate Structure. None. doi:10.1101/2020.06.15.152181

The non-glacial and non-cratonic origin of an early Archean felsic volcaniclastic unit, Barberton Greenstone Belt, South Africa

Lowe, D. R., & Byerly, G. R. (2020). The non-glacial and non-cratonic origin of an early Archean felsic volcaniclastic unit, Barberton Greenstone Belt, South Africa. Precambrian Research, 341, 105647. doi:10.1016/j.precamres.2020.105647

Biostratinomy of the Ediacara Member (Rawnsley Quartzite, South Australia): implications for depositional environments, ecology and biology of Ediacara organisms

Droser, M. L., Tarhan, L. G., Evans, S. D., Surprenant, R. L., & Gehling, J. G. (2020). Biostratinomy of the Ediacara Member (Rawnsley Quartzite, South Australia): implications for depositional environments, ecology and biology of Ediacara organisms. Interface Focus, 10(4), 20190100. doi:10.1098/rsfs.2019.0100

Introduction: Chemical Evolution and the Origins of Life

Krishnamurthy, R., & Hud, N. V. (2020). Introduction: Chemical Evolution and the Origins of Life. Chemical Reviews, 120(11), 4613–4615. doi:10.1021/acs.chemrev.0c00409

Sensitivity Analyses of Exoplanet Occurrence Rates from Kepler and Gaia

Shabram, M. I., Batalha, N., Thompson, S. E., Hsu, D. C., Ford, E. B., Christiansen, J. L., … Caldwell, D. (2020). Sensitivity Analyses of Exoplanet Occurrence Rates from Kepler and Gaia. The Astronomical Journal, 160(1), 16. doi:10.3847/1538-3881/ab90fe

Electric discharge evidence found in a new class of material in the Chicxulub ejecta

Kletetschka, G., Ocampo Uria, A., Zila, V., & Elbra, T. (2020). Electric discharge evidence found in a new class of material in the Chicxulub ejecta. Scientific Reports, 10(1), None. doi:10.1038/s41598-020-65974-2

Bioenergetic characterization of a shallow-sea hydrothermal vent system: Milos Island, Greece

Lu, G-S., LaRowe, D. E., Fike, D. A., Druschel, G. K., Gilhooly, W. P., Price, R. E., & Amend, J. P. (2020). Bioenergetic characterization of a shallow-sea hydrothermal vent system: Milos Island, Greece. PLOS ONE, 15(6), e0234175. doi:10.1371/journal.pone.0234175

Evidence for a Past Martian Ring from the Orbital Inclination of Deimos

Ćuk, M., Minton, D. A., Pouplin, J. L. L., & Wishard, C. (2020). Evidence for a Past Martian Ring from the Orbital Inclination of Deimos. The Astrophysical Journal, 896(2), L28. doi:10.3847/2041-8213/ab974f

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