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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December 2022Limited nitrogen isotopic fractionation during core-mantle differentiation in rocky protoplanets and planets

Grewal, D. S., Sun, T., Aithala, S., Hough, T., Dasgupta, R., Yeung, L. Y., & Schauble, E. A. (2022). Limited nitrogen isotopic fractionation during core-mantle differentiation in rocky protoplanets and planets. Geochimica et Cosmochimica Acta, 338, 347–364. doi:10.1016/j.gca.2022.10.025

Carnobacterium Species Capable of Growth at Pressures Ranging Over 5 Orders of Magnitude, from the Surface of Mars (103 Pa) to Deep Oceans (107 Pa) in the Solar System

Miller, K. M., Tang, F., Li, S., Mullane, K. K., Shelton, B. R., Bui, L., Bartlett, D. H., Nicholsond, W. L. (2022). Carnobacterium Species Capable of Growth at Pressures Ranging Over 5 Orders of Magnitude, from the Surface of Mars (103 Pa) to Deep Oceans (107 Pa) in the Solar System. Astrobiology. doi: 10.1089/ast.2022.0043

Subzero, saline incubations of Colwellia psychrerythraea reveal strategies and biomarkers for sustained life in extreme icy environments

Mudge, M.C., Nunn, B.L., Firth, F., Ewert, M., Hales, K., Fondrie, W.E., Noble, W.S., Toner, J., Light, B., Junge, K.A. (2021). Subzero, saline incubations of Colwellia psychrerythraea reveal strategies and biomarkers for sustained life in extreme icy environments. Environmental Microbiology, 23, 7. doi: 10.1111/1462-2920.15485

Decoupling of respiration rates and abundance in marine prokaryoplankton

Munson-McGee, J. H., Lindsay, M. R., Sintes, E., Brown, J. M., D’Angelo, T., Brown, J., … Stepanauskas, R. (2022). Decoupling of respiration rates and abundance in marine prokaryoplankton. Nature, 612(7941), 764–770. doi:10.1038/s41586-022-05505-3

November 2022Formation Waters Delineate Diverse Hydrogeologic Conditions at a Plate Scale: Eastern Flank of the Juan de Fuca Ridge

Wheat, C. G., Mottl, M. J., Fisher, A. T., & Hulme, S. (2022). Formation Waters Delineate Diverse Hydrogeologic Conditions at a Plate Scale: Eastern Flank of the Juan de Fuca Ridge. Geochemistry, Geophysics, Geosystems, 23(11), None. doi:10.1029/2022gc010665

Rapid 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

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