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 2019Helium, inorganic and organic carbon isotopes of fluids and gases across the Costa Rica convergent margin

Barry, P. H., Nakagawa, M., Giovannelli, D., Maarten De Moor, J., Schrenk, M., Seltzer, A. M., … Lloyd, K. G. (2019). Helium, inorganic and organic carbon isotopes of fluids and gases across the Costa Rica convergent margin. Scientific Data, 6(1), None. doi:10.1038/s41597-019-0302-4

Breaking the centrifugal barrier to giant planet contraction by magnetic disc braking

Ginzburg, S., & Chiang, E. (2019). Breaking the centrifugal barrier to giant planet contraction by magnetic disc braking. Monthly Notices of the Royal Astronomical Society: Letters, 491(1), L34–L39. doi:10.1093/mnrasl/slz164

Sources of C30 steroid biomarkers in Neoproterozoic–Cambrian rocks and oils

Love, G. D., Zumberge, J. A., Cárdenas, P., Sperling, E. A., Rohrssen, M., Grosjean, E., … Summons, R. E. (2019). Sources of C30 steroid biomarkers in Neoproterozoic–Cambrian rocks and oils. Nature Ecology & Evolution. doi:10.1038/s41559-019-1048-2

The pH dependent mechanisms of non-enzymatic peptide bond cleavage reactions

Sun, Y., Frenkel-Pinter, M., Liotta, C. L., & Grover, M. A. (2020). The pH dependent mechanisms of non-enzymatic peptide bond cleavage reactions. Physical Chemistry Chemical Physics, 22(1), 107–113. doi:10.1039/c9cp05240b

Do Metal-rich Stars Make Metal-rich Planets? New Insights on Giant Planet Formation from Host Star Abundances

Teske, J. K., Thorngren, D., Fortney, J. J., Hinkel, N., & Brewer, J. M. (2019). Do Metal-rich Stars Make Metal-rich Planets? New Insights on Giant Planet Formation from Host Star Abundances. The Astronomical Journal, 158(6), 239. doi:10.3847/1538-3881/ab4f79

The Effect of Bacterial Sulfate Reduction Inhibition on the Production and Stable Isotopic Composition of Methane in Hypersaline Environments

Kelley, C. A., Bebout, B. M., Chanton, J. P., Detweiler, A. M., Frisbee, A., Nicholson, B. E., … Winkler, C. (2019). The Effect of Bacterial Sulfate Reduction Inhibition on the Production and Stable Isotopic Composition of Methane in Hypersaline Environments. Aquatic Geochemistry, 25(5-6), 237–251. doi:10.1007/s10498-019-09362-x

Hunter-Gatherers Harvested and Heated Microbial Biogenic Iron Oxides to Produce Rock Art Pigment

MacDonald, B. L., Stalla, D., He, X., Rahemtulla, F., Emerson, D., Dube, P. A., … White, T. A. (2019). Hunter-Gatherers Harvested and Heated Microbial Biogenic Iron Oxides to Produce Rock Art Pigment. Scientific Reports, 9(1), None. doi:10.1038/s41598-019-53564-w

Frequency of Coronal Mass Ejection Impacts with Early Terrestrial Planets and Exoplanets around Active Solar-like Stars

Kay, C., Airapetian, V. S., Lüftinger, T., & Kochukhov, O. (2019). Frequency of Coronal Mass Ejection Impacts with Early Terrestrial Planets and Exoplanets around Active Solar-like Stars. The Astrophysical Journal, 886(2), L37. doi:10.3847/2041-8213/ab551f

A global geomorphologic map of Saturn’s moon Titan

Lopes, R. M. C., Malaska, M. J., Schoenfeld, A. M., Solomonidou, A., Birch, S. P. D., Florence, M., … Wall, S. D. (2019). A global geomorphologic map of Saturn’s moon Titan. Nature Astronomy. doi:10.1038/s41550-019-0917-6

Theoretical study of formate, tartrate, tartronate, and glycolate production from 6-carbon trioxylate intermediate in the citric acid cycle

Khan, M., Kar, S., Wang, J., & Leszczynski, J. (2019). Theoretical study of formate, tartrate, tartronate, and glycolate production from 6-carbon trioxylate intermediate in the citric acid cycle. Journal of Molecular Modeling, 25(12), None. doi:10.1007/s00894-019-4240-z

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