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 2023A Bacterial Form I’ Rubisco Has a Smaller Carbon Isotope Fractionation than Its Form I Counterpart

Wang, R. Z., Liu, A. K., Banda, D. M., Fischer, W. W., & Shih, P. M. (2023). A Bacterial Form I’ Rubisco Has a Smaller Carbon Isotope Fractionation than Its Form I Counterpart. Biomolecules, 13(4), 596. doi:10.3390/biom13040596

Prebiotic Chemistry of Phosphite: Mild Thermal Routes to Form Condensed-P Energy Currency Molecules Leading up to the Formation of Organophosphorus Compounds

Gull, M., Feng, T., Cruz, H. A., Krishnamurthy, R., & Pasek, M. A. (2023). Prebiotic Chemistry of Phosphite: Mild Thermal Routes to Form Condensed-P Energy Currency Molecules Leading up to the Formation of Organophosphorus Compounds. Life, 13(4), 920. doi:10.3390/life13040920

TOI-2525 b and c: A Pair of Massive Warm Giant Planets with Strong Transit Timing Variations Revealed by TESS*

Trifonov, T., Brahm, R., Jordán, A., Hartogh, C., Henning, T., Hobson, M. J., … Winn, J. N. (2023). TOI-2525 b and c: A Pair of Massive Warm Giant Planets with Strong Transit Timing Variations Revealed by TESS*. The Astronomical Journal, 165(4), 179. doi:10.3847/1538-3881/acba9b

Goldilocks and RNA: where Mg2+ concentration is just right

Guth-Metzler, R., Mohamed, A. M., Cowan, E. T., Henning, A., Ito, C., Frenkel-Pinter, M., … Williams, L. D. (2023). Goldilocks and RNA: where Mg2+ concentration is just right. Nucleic Acids Research. doi:10.1093/nar/gkad124

Spatial distributions of Tribrachidium, Rugoconites, and Obamus from the Ediacara Member (Rawnsley Quartzite), South Australia

Boan, P.C., Evans, S.D., Hall, C.M.S., Droser, M.L. (2023) Spatial distributions of Tribrachidium, Rugoconites, and Obamus from the Ediacara Member (Rawnsley Quartzite), South Australia. Paleobiology. DOI: 10.1017/pab.2023.9

Mineralogical 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

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