NASA Astrobiology

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A volcanically active planet is shown in closeup at the left side of the image with glowing eruptions and lines of lava on the surface. To the right and in the distance is a faint blue glowing ball representing the more massive planet in the system.

Sixteen frames from Voyager 1's flyby of Jupiter in 1979 were merged to create this image. Jupiter's Great Red Spot is visible in the center. Jupiter's moon Europa can be seen in the foreground at the bottom left of the image.

The frame is a horizontal rainbow of color on a grid. Shadows of molecules can be seen through the light as well as the jagged peaks and troughs of spectral lines.

Fizzy Super Earths and Lava Worlds“Fizzy Super-Earths: Impacts of Magma Composition on the Bulk Density and Structure of Lava Worlds.” in The Astrophysical Journal.01/03

Identifying Hydrothermal Activity on Icy Ocean Worlds“Ethene-ethanol ratios as potential indicators of hydrothermal activity at Enceladus, Europa, and other icy ocean worlds.” In Icarus.02/03

NASA Raman Spectroscopic Database"The NASA Raman spectroscopic database: Ramdb version 1.00.” In Icarus.03/03

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September 2020A 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

Chondrules reveal large-scale outward transport of inner Solar System materials in the protoplanetary disk

Williams, C. D., Sanborn, M. E., Defouilloy, C., Yin, Q-Z., Kita, N. T., Ebel, D. S., … Yamashita, K. (2020). Chondrules reveal large-scale outward transport of inner Solar System materials in the protoplanetary disk. Proceedings of the National Academy of Sciences, 117(38), 23426–23435. doi:10.1073/pnas.2005235117

A network approach to elucidate and prioritize microbial dark matter in microbial communities

Zamkovaya, T., Foster, J. S., De Crécy-Lagard, V., & Conesa, A. (2020). A network approach to elucidate and prioritize microbial dark matter in microbial communities. The ISME Journal. doi:10.1038/s41396-020-00777-x

Metal‐Templated Design of Chemically Switchable Protein Assemblies with High‐Affinity Coordination Sites

Kakkis, A., Gagnon, D., Esselborn, J., Britt, R. D., & Akif Tezcan, F. (2020). Metal‐Templated Design of Chemically Switchable Protein Assemblies with High‐Affinity Coordination Sites. Angewandte Chemie International Edition, 59(49), 21940–21944. doi:10.1002/anie.202009226

dragon: A New Tool for Exploring Redox Evolution Preserved in the Mineral Record

Spielman, S. J., & Moore, E. K. (2020). dragon: A New Tool for Exploring Redox Evolution Preserved in the Mineral Record. Frontiers in Earth Science, 8, None. doi:10.3389/feart.2020.585087

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