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 2023Evidence for a carbon-rich Mercury from the distribution of low-reflectance material (LRM) associated with large impact basins

Lark, L. H., Head, J. W., & Huber, C. (2023). Evidence for a carbon-rich Mercury from the distribution of low-reflectance material (LRM) associated with large impact basins. Earth and Planetary Science Letters, 613, 118192. doi:10.1016/j.epsl.2023.118192

Evidence for the anaerobic biodegradation of higher molecular weight hydrocarbons in the Guaymas Basin

Liang, R., Davidova, I. A., Teske, A., & Suflita, J. M. (2023). Evidence for the anaerobic biodegradation of higher molecular weight hydrocarbons in the Guaymas Basin. International Biodeterioration & Biodegradation, 181, 105621. doi:10.1016/j.ibiod.2023.105621

The evolution and spread of sulfur cycling enzymes reflect the redox state of the early Earth

Mateos, K., Chappell, G., Klos, A., Le, B., Boden, J., Stüeken, E., & Anderson, R. (2023). The evolution and spread of sulfur cycling enzymes reflect the redox state of the early Earth. Science Advances, 9(27), None. doi:10.1126/sciadv.ade4847

On the origin of fluorine-poor apatite in chondrite parent bodies

McCubbin, F. M., Lewis, J. A., Barnes, J. J., Boyce, J. W., Gross, J., McCanta, M. C., … Agee, C. B. (2023). On the origin of fluorine-poor apatite in chondrite parent bodies. American Mineralogist, 108(7), 1185–1200. doi:10.2138/am-2022-8623

The Presence and Composition of Mn-rich Chondrule Rims in CO3 Chondrites

Kirk, J., Hyseni, P., Jorge-Chavez, F., Mendoza, V., Burns, D., Simon, S., & Telus, M. (2023). The Presence and Composition of Mn-rich Chondrule Rims in CO3 Chondrites. Microscopy and Microanalysis, 29(Supplement_1), 857–859. doi:10.1093/micmic/ozad067.425

60Fe-60Ni Systematics of Chondrules from Primitive Chondritic Meteorites

Telus, M., Dhaliwal, J., & Wickland, T. (2023). 60Fe-60Ni Systematics of Chondrules from Primitive Chondritic Meteorites. Microscopy and Microanalysis, 29(Supplement_1), 825–827. doi:10.1093/micmic/ozad067.410

Tidally induced fault motion within Europa's ice shell and implications for subsurface communication development

Lien, R. R., Craft, K. L., Walker, M. E., Patterson, G. W., & Rhoden, A. R. (2023). Tidally induced fault motion within Europa's ice shell and implications for subsurface communication development. Icarus, None, 115726. doi:10.1016/j.icarus.2023.115726

Bolometric Hemispherical Albedo Map of Pluto from New Horizons Observations

Hofgartner, J. D., Buratti, B. J., Beyer, R. A., Ennico, K., Grundy, W. M., Howett, C. J. A., … Young, L. A. (2023). Bolometric Hemispherical Albedo Map of Pluto from New Horizons Observations. The Planetary Science Journal, 4(7), 132. doi:10.3847/psj/ace3ab

Modeled energetics of bacterial communities in ancient subzero brines

Kanaan, G., Hoehler, T. M., Iwahana, G., & Deming, J. W. (2023). Modeled energetics of bacterial communities in ancient subzero brines. Frontiers in Microbiology, 14, None. doi:10.3389/fmicb.2023.1206641

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

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

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