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 2020Thermal Habitat for RNA Amplification and Accumulation

Salditt, A., Keil, L. M. R., Horning, D. P., Mast, C. B., Joyce, G. F., & Braun, D. (2020). Thermal Habitat for RNA Amplification and Accumulation. Physical Review Letters, 125(4), None. doi:10.1103/physrevlett.125.048104

Stromatolites, Biosignatures, and Astrobiological Implications

Foster, J. S., Babilonia, J., Parke-Suosaari, E., & Pamela Reid, R. (2020). Stromatolites, Biosignatures, and Astrobiological Implications. Cuatro Ciénegas Basin: An Endangered Hyperdiverse Oasis, None, 89–105. doi:10.1007/978-3-030-46087-7_4

Prochlorococcus phage ferredoxin: structural characterization and electron transfer to cyanobacterial sulfite reductases

Campbell, I. J., Olmos, J. L., Xu, W., Kahanda, D., Atkinson, J. T., Sparks, O. N., … Silberg, J. J. (2020). Prochlorococcus phage ferredoxin: structural characterization and electron transfer to cyanobacterial sulfite reductases. Journal of Biological Chemistry, 295(31), 10610–10623. doi:10.1074/jbc.ra120.013501

Design of a Fe 4 S 4 cluster into the core of a de novo four‐helix bundle

Mancini, J. A., Pike, D. H., Tyryshkin, A. M., Haramaty, L., Wang, M. S., Poudel, S., … Nanda, V. (2020). Design of a Fe 4 S 4 cluster into the core of a de novo four‐helix bundle. Biotechnology and Applied Biochemistry, 67(4), 574–585. doi:10.1002/bab.2003

Correction to: 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. (2020). Correction to: The Effect of Bacterial Sulfate Reduction Inhibition on the Production and Stable Isotopic Composition of Methane in Hypersaline Environments. Aquatic Geochemistry. doi:10.1007/s10498-020-09381-z

Lipid Biomarker Record of the Serpentinite-Hosted Ecosystem of the Samail Ophiolite, Oman and Implications for the Search for Biosignatures on Mars

Newman, S. A., Lincoln, S. A., O'Reilly, S., Liu, X., Shock, E. L., Kelemen, P. B., & Summons, R. E. (2020). Lipid Biomarker Record of the Serpentinite-Hosted Ecosystem of the Samail Ophiolite, Oman and Implications for the Search for Biosignatures on Mars. Astrobiology, 20(7), 830–845. doi:10.1089/ast.2019.2066

Bacterial chemolithoautotrophy via manganese oxidation

Yu, H., & Leadbetter, J. R. (2020). Bacterial chemolithoautotrophy via manganese oxidation. Nature, 583(7816), 453–458. doi:10.1038/s41586-020-2468-5

Widespread poly-metamorphosed Archean granitoid gneisses and supracrustal enclaves of the southern Inukjuak Domain, Québec (Canada)

Greer, J., Caro, G., Cates, N. L., Tropper, P., Bleeker, W., Kelly, N. M., & Mojzsis, S. J. (2020). Widespread poly-metamorphosed Archean granitoid gneisses and supracrustal enclaves of the southern Inukjuak Domain, Québec (Canada). Lithos, 364-365, 105520. doi:10.1016/j.lithos.2020.105520

Stratification Dynamics of Titan’s Lakes via Methane Evaporation

Steckloff, J. K., Soderblom, J. M., Farnsworth, K. K., Chevrier, V. F., Hanley, J., Soto, A., … Engle, A. (2020). Stratification Dynamics of Titan’s Lakes via Methane Evaporation. The Planetary Science Journal, 1(2), 26. doi:10.3847/psj/ab974e

Availability of previously lost data and metadata from the Apollo Lunar Surface Experiments Package (ALSEP)

Nagihara, S., Williams, D. R., Nakamura, Y., Kiefer, W. S., McLaughlin, S. A., & Taylor, P. T. (2020). Availability of previously lost data and metadata from the Apollo Lunar Surface Experiments Package (ALSEP). Planetary and Space Science, None, 105039. doi:10.1016/j.pss.2020.105039

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