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 2023Constraints on the Size and Composition of the Ancient Martian Atmosphere from Coupled CO2–N2–Ar Isotopic Evolution Models

Thomas, T.B.,2, Hu, R., Lo, D.Y. (2023) Constraints on the Size and Composition of the Ancient Martian Atmosphere from Coupled CO2–N2–Ar Isotopic Evolution Models. The Planetary Science Journal, 4(3). doi: 10.3847/PSJ/acb924

Design of a minimal di-nickel hydrogenase peptide

Timm, J., Pike, D.H., Mancini, J.A., Tyryshkin, A.M., Poudel, S., Siess, J.A., Molinaro, P.M., McCann, J.J., Waldie, K.M., Koder, R.L., Falkowski, P.G., Nanda, V. (2023) Design of a minimal di-nickel hydrogenase peptide. Science Advances. DOI: 10.1126/sciadv.abq1990

40Ar/39Ar ages of L4, H5, EL6, and feldspathic ureilitic clasts from the Almahata Sitta polymict ureilite (asteroid 2008 TC3)

Turrin, B.D., Lindsay, F., Delaney, J.S., Park, J., Herzog, G.F., Swisher Jr, C., Goodrich, C.A. (2023) 40Ar/39Ar ages of L4, H5, EL6, and feldspathic ureilitic clasts from the Almahata Sitta polymict ureilite (asteroid 2008 TC3). Meteoritics and Planetary Science. doi: 10.1111/maps.13953

February 2023Huge Variation in H2 Generation During Seawater Alteration of Ultramafic Rocks

Ely, T.D., Jeong, J.M., Canovas, P.A., Shock, E.L. Huge Variation in H2 Generation During Seawater Alteration of Ultramafic Rocks. Geochemistry, Geophysics, Geosystems. DOI: 10.1029/2022GC010658

Nitrogenase resurrection and the evolution of a singular enzymatic mechanism

Garcia, A. K., Harris, D. F., Rivier, A. J., Carruthers, B. M., Pinochet-Barros, A., Seefeldt, L., & Kaçar, B. (2023). Nitrogenase resurrection and the evolution of a singular enzymatic mechanism. eLife, 12, None. doi:10.7554/elife.85003

On the identification of hyperhydrated sodium chloride hydrates, stable at icy moon conditions

Journaux, B., Pakhomova, A., Collings, I. E., Petitgirard, S., Boffa Ballaran, T., Brown, J. M., … Hanfland, M. (2023). On the identification of hyperhydrated sodium chloride hydrates, stable at icy moon conditions. Proceedings of the National Academy of Sciences, 120(9), None. doi:10.1073/pnas.2217125120

Experimental Characterization of the Pyridine:Acetylene Co-crystal and Implications for Titan’s Surface

Czaplinski, E. C., Vu, T. H., Cable, M. L., Choukroun, M., Malaska, M. J., & Hodyss, R. (2023). Experimental Characterization of the Pyridine:Acetylene Co-crystal and Implications for Titan’s Surface. ACS Earth and Space Chemistry, 7(3), 597–608. doi:10.1021/acsearthspacechem.2c00377

Superhabitability of High-obliquity and High-eccentricity Planets

Jernigan, J., Laflèche, É., Burke, A., & Olson, S. (2023). Superhabitability of High-obliquity and High-eccentricity Planets. The Astrophysical Journal, 944(2), 205. doi:10.3847/1538-4357/acb81c

Floating Liquid Droplets on the Surface of Cryogenic Liquids: Implications for Titan Rain

Farnsworth, K. K., Soto, A., Chevrier, V. F., Steckloff, J. K., & Soderblom, J. M. (2023). Floating Liquid Droplets on the Surface of Cryogenic Liquids: Implications for Titan Rain. ACS Earth and Space Chemistry, 7(2), 439–448. doi:10.1021/acsearthspacechem.2c00311

Analysis of CN Coma Morphology Features of Comet 21P/Giacobini–Zinner

Goldberg, C., Lejoly, C., & Samarasinha, N. (2023). Analysis of CN Coma Morphology Features of Comet 21P/Giacobini–Zinner. The Planetary Science Journal, 4(2), 28. doi:10.3847/psj/acb436

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