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 2023Quantifying the Bioavailable Energy in an Ancient Hydrothermal Vent on Mars and a Modern Earth-Based Analog

Rucker, H. R., Ely, T. D., LaRowe, D. E., Giovannelli, D., & Price, R. E. (2023). Quantifying the Bioavailable Energy in an Ancient Hydrothermal Vent on Mars and a Modern Earth-Based Analog. Astrobiology. doi:10.1089/ast.2022.0064

Seismo-acoustic coupling in the deep atmosphere of Venus

Averbuch, G., Houston, R., & Petculescu, A. (2023). Seismo-acoustic coupling in the deep atmosphere of Venus. The Journal of the Acoustical Society of America, 153(3), 1802–1810. doi:10.1121/10.0017428

A continuum of icy satellites’ radar properties explained by the coherent backscatter effect

Hofgartner, J. D., & Hand, K. P. (2023). A continuum of icy satellites’ radar properties explained by the coherent backscatter effect. Nature Astronomy. doi:10.1038/s41550-023-01920-2

Mass Spectrometric Fingerprints of Organic Compounds in NaCl-Rich Ice Grains from Europa and Enceladus

Napoleoni, M., Klenner, F., Khawaja, N., Hillier, J. K., & Postberg, F. (2023). Mass Spectrometric Fingerprints of Organic Compounds in NaCl-Rich Ice Grains from Europa and Enceladus. ACS Earth and Space Chemistry. doi:10.1021/acsearthspacechem.2c00342

Geometry of Freezing Impacts Ice Composition: Implications for Icy Satellites

Buffo, J. J., Meyer, C. R., Chivers, C. J., Walker, C. C., Huber, C., & Schmidt, B. E. (2023). Geometry of Freezing Impacts Ice Composition: Implications for Icy Satellites. Journal of Geophysical Research: Planets, 128(3), None. doi:10.1029/2022je007389

A 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

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