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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October 2020Europium as a lodestar: diagnosis of radiogenic heat production in terrestrial exoplanets: Spectroscopic determination of Eu abundances in alpha Centauri AB

Wang, H. S., , T., Morel, Quanz, S. P., & Mojzsis, S. J. (2020). Europium as a lodestar: diagnosis of radiogenic heat production in terrestrial exoplanets: Spectroscopic determination of Eu abundances in alpha Centauri AB. Astronomy & Astrophysics. doi:10.1051/0004-6361/202038386

September 2020Could the Migration of Jupiter Have Accelerated the Atmospheric Evolution of Venus?

Kane, S. R., Vervoort, P., Horner, J., & Pozuelos, F. J. (2020). Could the Migration of Jupiter Have Accelerated the Atmospheric Evolution of Venus? The Planetary Science Journal, 1(2), 42. doi:10.3847/psj/abae63

Characterization of Spacesuit Associated Microbial Communities and Their Implications for NASA Missions

Danko, D., Mohan, G. B. M., Sierra, M. A., Rucker, M., Singh, N., Regberg, A., … Venkateswaran, K. (2020). Characterization of Spacesuit Associated Microbial Communities and Their Implications for NASA Missions. None. doi:10.21203/rs.3.rs-70768/v1

Planetary Protection Implementation of the InSight Mission Launch Vehicle and Associated Ground Support Hardware

Hendrickson, R., Kazarians, G., Yearicks, S., Guan, L., Seuylemezian, A., Matthias, L. L., … Benardini, J. N. (2020). Planetary Protection Implementation of the InSight Mission Launch Vehicle and Associated Ground Support Hardware. Astrobiology. doi:10.1089/ast.2019.2099

A Decrease to Low Carbonate Clumped Isotope Temperatures in Cryogenian Strata

Mackey, T. J., Jost, A. B., Creveling, J. R., & Bergmann, K. D. (2020). A Decrease to Low Carbonate Clumped Isotope Temperatures in Cryogenian Strata. AGU Advances, 1(3), None. doi:10.1029/2019av000159

Archaeal roots of intramembrane aspartyl protease siblings signal peptide peptidase and presenilin

Raut, P., Glass, J. B., & Lieberman, R. L. (2020). Archaeal roots of intramembrane aspartyl protease siblings signal peptide peptidase and presenilin. Proteins: Structure, Function, and Bioinformatics. doi:10.1002/prot.26009

Activity-based cell sorting reveals responses of uncultured archaea and bacteria to substrate amendment

Reichart, N. J., Jay, Z. J., Krukenberg, V., Parker, A. E., Spietz, R. L., & Hatzenpichler, R. (2020). Activity-based cell sorting reveals responses of uncultured archaea and bacteria to substrate amendment. The ISME Journal. doi:10.1038/s41396-020-00749-1

Caldichromatium japonicum gen. nov., sp. nov., a novel thermophilic phototrophic purple sulphur bacterium of the Chromatiaceae isolated from Nakabusa hot springs, Japan

Saini, M. K., ChihChe, W., Soulier, N., Sebastian, A., Albert, I., Thiel, V., … Tank, M. (2020). Caldichromatium japonicum gen. nov., sp. nov., a novel thermophilic phototrophic purple sulphur bacterium of the Chromatiaceae isolated from Nakabusa hot springs, Japan. International Journal of Systematic and Evolutionary Microbiology. doi:10.1099/ijsem.0.004465

Microbial biomarkers reveal a hydrothermally active landscape at Olduvai Gorge at the dawn of the Acheulean, 1.7 Ma

Sistiaga, A., Husain, F., Uribelarrea, D., Martín-Perea, D. M., Ferland, T., Freeman, K. H., … Summons, R. E. (2020). Microbial biomarkers reveal a hydrothermally active landscape at Olduvai Gorge at the dawn of the Acheulean, 1.7 Ma. Proceedings of the National Academy of Sciences, None, 202004532. doi:10.1073/pnas.2004532117

Experimental evidence supports early silica cementation of the Ediacara Biota

Slagter, S., Tarhan, L. G., Hao, W., Planavsky, N. J., & Konhauser, K. O. (2020). Experimental evidence supports early silica cementation of the Ediacara Biota. Geology. doi:10.1130/g47919.1

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