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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November 2022Rapid formation of exoplanetesimals revealed by white dwarfs

Bonsor, A., Lichtenberg, T., Dra̧żkowska, J., & Buchan, A. M. (2022). Rapid formation of exoplanetesimals revealed by white dwarfs. Nature Astronomy. doi:10.1038/s41550-022-01815-8

Diverse geochemical conditions for prebiotic chemistry in shallow-sea alkaline hydrothermal vents

Barge, L. M., & Price, R. E. (2022). Diverse geochemical conditions for prebiotic chemistry in shallow-sea alkaline hydrothermal vents. Nature Geoscience. doi:10.1038/s41561-022-01067-1

Toward Detecting Biosignatures of DNA, Lipids, and Metabolic Intermediates from Bacteria in Ice Grains Emitted by Enceladus and Europa

Dannenmann, M., Klenner, F., Bönigk, J., Pavlista, M., Napoleoni, M., Hillier, J., … Postberg, F. (2022). Toward Detecting Biosignatures of DNA, Lipids, and Metabolic Intermediates from Bacteria in Ice Grains Emitted by Enceladus and Europa. Astrobiology. doi:10.1089/ast.2022.0063

Malotas (b), a new eucrite from an old fall

Saavedra, M. E., Roszjar, J., Riebe, M. E. I., Varela, M. E., Yang, S., Humayun, M., … Busemann, H. (2022). Malotas (b), a new eucrite from an old fall. Meteoritics & Planetary Science, 57(11), 2081–2101. doi:10.1111/maps.13913

Biogeochemistry of Recently Fossilized Siliceous Hot Spring Sinters from Yellowstone, USA

Teece, B. L., Havig, J. R., George, S. C., Hamilton, T. L., Baumgartner, R. J., Hartz, J., & Van Kranendonk, M. J. (2022). Biogeochemistry of Recently Fossilized Siliceous Hot Spring Sinters from Yellowstone, USA. Astrobiology. doi:10.1089/ast.2022.0012

Cryolava Dome growth resulting from active eruptions on Jupiter's moon Europa

Quick, L. C., Fagents, S. A., Núñez, K. A., Wilk, K. A., Beyer, R. A., Beddingfield, C. B., … Hurford, T. A. (2022). Cryolava Dome growth resulting from active eruptions on Jupiter's moon Europa. Icarus, 387, 115185. doi:10.1016/j.icarus.2022.115185

The power of paired proximity science observations: Co-located data from SHERLOC and PIXL on Mars

Razzell Hollis, J., Moore, K. R., Sharma, S., Beegle, L., Grotzinger, J. P., Allwood, A., … Yanchilina, A. (2022). The power of paired proximity science observations: Co-located data from SHERLOC and PIXL on Mars. Icarus, 387, 115179. doi:10.1016/j.icarus.2022.115179

Brine Volume Fraction as a Habitability Metric for Europa's Ice Shell

Wolfenbarger, N. S., Fox‐Powell, M. G., Buffo, J. J., Soderlund, K. M., & Blankenship, D. D. (2022). Brine Volume Fraction as a Habitability Metric for Europa's Ice Shell. Geophysical Research Letters, 49(22), None. doi:10.1029/2022gl100586

Potential Caves: Inventory of Subsurface Access Points on the Surface of Titan

Malaska, M. J., Schoenfeld, A., Wynne, J. J., Mitchell, K. L., White, O., Howard, A., … Umurhan, O. (2022). Potential Caves: Inventory of Subsurface Access Points on the Surface of Titan. Journal of Geophysical Research: Planets, 127(11), None. doi:10.1029/2022je007512

Environmental drivers of the first major animal extinction across the Ediacaran White Sea-Nama transition

Evans, S. D., Tu, C., Rizzo, A., Surprenant, R. L., Boan, P. C., McCandless, H., … Droser, M. L. (2022). Environmental drivers of the first major animal extinction across the Ediacaran White Sea-Nama transition. Proceedings of the National Academy of Sciences, 119(46), None. doi:10.1073/pnas.2207475119

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