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 2023Mineralogical alteration of a type A CAI from Allende CV3 chondrite: Formation of secondary dmisteinbergite and its phase transition to anorthite

Enokido, Y., Nakamura, T., Matsumoto, M., Miyake, A., Shibuya, T., Park, C., Zolensky, M. (2023) Mineralogical alteration of a type A CAI from Allende CV3 chondrite: Formation of secondary dmisteinbergite and its phase transition to anorthite. Meteoritics & Planetary Science. DOI: 10.1111/maps.13961

Assessing the spin–orbit obliquity of low-mass planets in the breaking the chain formation model: a story of misalignment

Esteves, L., Izidoro, A., Winter, O. C., Bitsch, B., & Isella, A. (2023). Assessing the spin–orbit obliquity of low-mass planets in the breaking the chain formation model: a story of misalignment. Monthly Notices of the Royal Astronomical Society, 521(4), 5776–5785. doi:10.1093/mnras/stad756

Species of Dickinsonia Sprigg from the Ediacaran of South Australia

Evans, S.G., Hunt, G., Gehling, J.G., Sperling, E.A., Droser, M.L. (2023) Species of Dickinsonia Sprigg from the Ediacaran of South Australia. Palaeontology, 1. doi: 10.1111/pala.12635

EDEN Survey: Small Transiting Planet Detection Limits and Constraints on the Occurrence Rates of Planets around Late-M Dwarfs within 15 pc

Jeremy Dietrich, Dániel Apai1, Martin Schlecker, Kevin K. Hardegree-Ullman, Benjamin V. Rackham, Nicolas Kurtovic, Karan Molaverdikhani, Paul Gabor, Thomas Henning, Wen-Ping Chen, Luigi Mancini, Alex Bixel, Aidan Gibbs, Richard P. Boyle, Samantha Brown-Sevilla, Remo Burn, Timmy N. Delage, Lizxandra Flores-Rivera, Riccardo Franceschi, Gabriele Pichierri, Sofia Savvidou, Jonas Syed, Ivan Bruni, Wing-Huen Ip, Chow-Choong Ngeow, An-Li Tsai, Chia-Lung Lin, Wei-Jie Hou, Hsiang-Yao Hsiao, Chi-Sheng Lin, Hung-Chin Lin, Ritvik Basant, and Project EDEN (2023) EDEN Survey: Small Transiting Planet Detection Limits and Constraints on the Occurrence Rates of Planets around Late-M Dwarfs within 15 pc. The Astronomical Journal. DOI: 10.3847/1538-3881/acba0b

Oxygen fugacity buffering in high-pressure solid media assemblies from IW-6.5 to IW+4.5 and application to the V K-edge oxybarometer

Righter, K., Butterworth, A.L., Gainsforth, K., Jilly-Rehak, C.E., Roychoudhury, S., Iacovino, K., Rowland, R., Erickson, T.M., Pando, K., Ross, D.K., Prendergast, D., Westphal, A.J. (2023) Oxygen fugacity buffering in high-pressure solid media assemblies from IW-6.5 to IW+4.5 and application to the V K-edge oxybarometer. American Mineralogist. DOI: 10.2138/am-2022-8301

Constraints 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

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

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