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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October 2022Early Nitrogenase Ancestors Encompassed Novel Active Site Diversity

Schwartz, S. L., Garcia, A. K., Kaçar, B., & Fournier, G. P. (2022). Early Nitrogenase Ancestors Encompassed Novel Active Site Diversity. Molecular Biology and Evolution, 39(11), None. doi:10.1093/molbev/msac226

Experimental serpentinization of iron-rich olivine (hortonolite): Implications for hydrogen generation and secondary mineralization on Mars and icy moons

McCollom, T. M., Klein, F., Moskowitz, B., & Solheid, P. (2022). Experimental serpentinization of iron-rich olivine (hortonolite): Implications for hydrogen generation and secondary mineralization on Mars and icy moons. Geochimica et Cosmochimica Acta, 335, 98–110. doi:10.1016/j.gca.2022.08.025

Alternative Methylated Biosignatures. I. Methyl Bromide, a Capstone Biosignature

Leung, M., Schwieterman, E. W., Parenteau, M. N., & Fauchez, T. J. (2022). Alternative Methylated Biosignatures. I. Methyl Bromide, a Capstone Biosignature. The Astrophysical Journal, 938(1), 6. doi:10.3847/1538-4357/ac8799

Early Mars habitability and global cooling by H2-based methanogens

Sauterey, B., Charnay, B., Affholder, A., Mazevet, S., & Ferrière, R. (2022). Early Mars habitability and global cooling by H2-based methanogens. Nature Astronomy. doi:10.1038/s41550-022-01786-w

A Mirage or an Oasis? Water Vapor in the Atmosphere of the Warm Neptune TOI-674 b

Brande, J., Crossfield, I. J. M., Kreidberg, L., Oklopčić, A., Polanski, A. S., Barman, T., … Morley, C. V. (2022). A Mirage or an Oasis? Water Vapor in the Atmosphere of the Warm Neptune TOI-674 b. The Astronomical Journal, 164(5), 197. doi:10.3847/1538-3881/ac8b7e

A Method to Increase and Document the Impact of Astrobiology Education and Public Outreach

Davis, H. B., Scalice, D., & Davey, B. (2022). A Method to Increase and Document the Impact of Astrobiology Education and Public Outreach. Astrobiology, 22(10), 1264–1270. doi:10.1089/ast.2021.0086

Air–Sea Interactions on Titan: Effect of Radiative Transfer on the Lake Evaporation and Atmospheric Circulation

Chatain, A., Rafkin, S. C. R., Soto, A., Hueso, R., & Spiga, A. (2022). Air–Sea Interactions on Titan: Effect of Radiative Transfer on the Lake Evaporation and Atmospheric Circulation. The Planetary Science Journal, 3(10), 232. doi:10.3847/psj/ac8d0b

Ocean dynamics and tracer transport over the south pole geysers of Enceladus

Kang, W., Marshall, J., Mittal, T., & Bire, S. (2022). Ocean dynamics and tracer transport over the south pole geysers of Enceladus. Monthly Notices of the Royal Astronomical Society, 517(3), 3485–3494. doi:10.1093/mnras/stac2882

Hydrothermal Processing of Microorganisms: Mass Spectral Signals of Degraded Biosignatures for Life Detection on Icy Moons

Salter, T. L., Watson, J. S., Waite, J. H., & Sephton, M. A. (2022). Hydrothermal Processing of Microorganisms: Mass Spectral Signals of Degraded Biosignatures for Life Detection on Icy Moons. ACS Earth and Space Chemistry, 6(10), 2508–2518. doi:10.1021/acsearthspacechem.2c00213

Volcanically hosted venting with indications of ultramafic influence at Aurora hydrothermal field on Gakkel Ridge

German, C. R., Reeves, E. P., Türke, A., Diehl, A., Albers, E., Bach, W., … Boetius, A. (2022). Volcanically hosted venting with indications of ultramafic influence at Aurora hydrothermal field on Gakkel Ridge. Nature Communications, 13(1), None. doi:10.1038/s41467-022-34014-0

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