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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July 2023Effect of Concentration, Cooling, and Warming Rates on Glass Transition Temperatures for NaClO4, Ca(ClO4)2, and Mg(ClO4)2 Brines with Relevance to Mars and Other Cold Bodies

Bravenec, A.D., Catling, D.C. (2023). Effect of Concentration, Cooling, and Warming Rates on Glass Transition Temperatures for NaClO4, Ca(ClO4)2, and Mg(ClO4)2 Brines with Relevance to Mars and Other Cold Bodies. ACS Earth and Space Chemistry. doi: 10.1021/acsearthspacechem.3c00090

June 2023JWST molecular mapping and characterization of Enceladus’ water plume feeding its torus

Villanueva, G. L., Hammel, H. B., Milam, S. N., Kofman, V., Faggi, S., Glein, C. R., … Denny, K. (2023). JWST molecular mapping and characterization of Enceladus’ water plume feeding its torus. Nature Astronomy. doi:10.1038/s41550-023-02009-6

May 2023Io as an Analog for Tidally Heated Exoplanets

Barr, A. C., Brasser, R., Dobos, V., & Quick, L. C. (2023). Io as an Analog for Tidally Heated Exoplanets. Astrophysics and Space Science Library, None, 323–348. doi:10.1007/978-3-031-25670-7_10

Exploratory data analysis (EDA) machine learning approaches for ocean world analog mass spectrometry

Da Poian, V., Theiling, B., Clough, L., McKinney, B., Major, J., Chen, J., & Hörst, S. (2023). Exploratory data analysis (EDA) machine learning approaches for ocean world analog mass spectrometry. Frontiers in Astronomy and Space Sciences, 10, None. doi:10.3389/fspas.2023.1134141

Experimental Validation of Cryobot Thermal Models for the Exploration of Ocean Worlds

Do Vale Pereira, P., Durka, M. J., Hogan, B. P., Richmond, K., Smith, M. W. E., Winebrenner, D. P., … Stone, W. C. (2023). Experimental Validation of Cryobot Thermal Models for the Exploration of Ocean Worlds. The Planetary Science Journal, 4(5), 81. doi:10.3847/psj/acc2b7

Reversibility controls on extreme methane clumped isotope signatures from anaerobic oxidation of methane

Liu, J., Harris, R. L., Ash, J. L., Ferry, J. G., Krause, S. J. E., Labidi, J., … Young, E. D. (2023). Reversibility controls on extreme methane clumped isotope signatures from anaerobic oxidation of methane. Geochimica et Cosmochimica Acta, 348, 165–186. doi:10.1016/j.gca.2023.02.022

April 2023Phosphate availability and implications for life on ocean worlds

Randolph-Flagg, N. G., Ely, T., Som, S. M., Shock, E. L., German, C. R., & Hoehler, T. M. (2023). Phosphate availability and implications for life on ocean worlds. Nature Communications, 14(1), None. doi:10.1038/s41467-023-37770-9

March 2023Hot Vents Beneath an Icy Ocean: The Aurora Vent Field, Gakkel Ridge, Revealed

Ramirez-Llodra, E., , ., Argentino, C., Baker, M., Boetius, A., Costa, C., … Buenz, S. (2023). Hot Vents Beneath an Icy Ocean: The Aurora Vent Field, Gakkel Ridge, Revealed. Oceanography, 36(1), None. doi:10.5670/oceanog.2023.103

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

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