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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March 2022Cool microrefugia accumulate and conserve biodiversity under climate change

Nadeau, C. P., Giacomazzo, A., & Urban, M. C. (2022). Cool microrefugia accumulate and conserve biodiversity under climate change. Global Change Biology. doi:10.1111/gcb.16143

Coaccretion + Giant-impact Origin of the Uranus System: Tilting Impact

Rufu, R., & Canup, R. M. (2022). Coaccretion + Giant-impact Origin of the Uranus System: Tilting Impact. The Astrophysical Journal, 928(2), 123. doi:10.3847/1538-4357/ac525a

Habitable Planet Formation around Low-mass Stars: Rapid Accretion, Rapid Debris Removal, and the Essential Contribution of External Giants

Clement, M. S., Quintana, E. V., & Quarles, B. L. (2022). Habitable Planet Formation around Low-mass Stars: Rapid Accretion, Rapid Debris Removal, and the Essential Contribution of External Giants. The Astrophysical Journal, 928(1), 91. doi:10.3847/1538-4357/ac549e

Proterozoic supercontinent break-up as a driver for oxygenation events and subsequent carbon isotope excursions

Eguchi, J., Diamond, C. W., & Lyons, T. W. (2022). Proterozoic supercontinent break-up as a driver for oxygenation events and subsequent carbon isotope excursions. PNAS Nexus, 1(2), None. doi:10.1093/pnasnexus/pgac036

February 2022The origin of volatile elements in the Earth–Moon system

Borg, L. E., Brennecka, G. A., & Kruijer, T. S. (2022). The origin of volatile elements in the Earth–Moon system. Proceedings of the National Academy of Sciences, 119(8), None. doi:10.1073/pnas.2115726119

Differential Oligomerization of Alpha versus Beta Amino Acids and Hydroxy Acids in Abiotic Proto-Peptide Synthesis Reactions

Frenkel-Pinter, M., Jacobson, K. C., Eskew-Martin, J., Forsythe, J. G., Grover, M. A., Williams, L. D., & Hud, N. V. (2022). Differential Oligomerization of Alpha versus Beta Amino Acids and Hydroxy Acids in Abiotic Proto-Peptide Synthesis Reactions. Life, 12(2), 265. doi:10.3390/life12020265

A nitrogen-rich atmosphere on ancient Mars consistent with isotopic evolution models

Hu, R., & Thomas, T. B. (2022). A nitrogen-rich atmosphere on ancient Mars consistent with isotopic evolution models. Nature Geoscience, 15(2), 106–111. doi:10.1038/s41561-021-00886-y

Desulfovulcanus ferrireducens gen. nov., sp. nov., a thermophilic autotrophic iron and sulfate-reducing bacterium from subseafloor basalt that grows on akaganéite and lepidocrocite minerals

Kashyap, S., Musa, M., Neat, K. A., Leopo, D. A., & Holden, J. F. (2022). Desulfovulcanus ferrireducens gen. nov., sp. nov., a thermophilic autotrophic iron and sulfate-reducing bacterium from subseafloor basalt that grows on akaganéite and lepidocrocite minerals. Extremophiles, 26(1), None. doi:10.1007/s00792-022-01263-2

nQMaker: Estimating Time Nonreversible Amino Acid Substitution Models

Dang, C. C., Minh, B. Q., McShea, H., Masel, J., James, J. E., Vinh, L. S., & Lanfear, R. (2022). nQMaker: Estimating Time Nonreversible Amino Acid Substitution Models. Systematic Biology, 71(5), 1110–1123. doi:10.1093/sysbio/syac007

Reconstruction of Nitrogenase Predecessors Suggests Origin from Maturase-Like Proteins

Garcia, A. K., Kolaczkowski, B., & Kaçar, B. (2022). Reconstruction of Nitrogenase Predecessors Suggests Origin from Maturase-Like Proteins. Genome Biology and Evolution, 14(3), None. doi:10.1093/gbe/evac031

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