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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January 2022Organic synthesis associated with serpentinization and carbonation on early Mars

Steele, A., Benning, L. G., Wirth, R., Schreiber, A., Araki, T., McCubbin, F. M., … Rogers, K. (2022). Organic synthesis associated with serpentinization and carbonation on early Mars. Science, 375(6577), 172–177. doi:10.1126/science.abg7905

December 2021Nonstandard RNA/RNA interactions likely enhance folding and stability of segmented ribosomes

Rivas, M., & Fox, G. E. (2021). Nonstandard RNA/RNA interactions likely enhance folding and stability of segmented ribosomes. RNA, 28(3), 340–352. doi:10.1261/rna.079006.121

Evaluation of the classification of pre-solar silicon carbide grains using consensus clustering with resampling methods: An assessment of the confidence of grain assignments

Hystad, G., Boujibar, A., Liu, N., Nittler, L. R., & Hazen, R. M. (2021). Evaluation of the classification of pre-solar silicon carbide grains using consensus clustering with resampling methods: An assessment of the confidence of grain assignments. Monthly Notices of the Royal Astronomical Society, 510(1), 334–350. doi:10.1093/mnras/stab3478

Planetesimal rings as the cause of the Solar System’s planetary architecture

Izidoro, A., Dasgupta, R., Raymond, S. N., Deienno, R., Bitsch, B., & Isella, A. (2021). Planetesimal rings as the cause of the Solar System’s planetary architecture. Nature Astronomy, 6(3), 357–366. doi:10.1038/s41550-021-01557-z

New Evidence for Wet Accretion of Inner Solar System Planetesimals from Meteorites Chelyabinsk and Benenitra

Jin, Z., Bose, M., Lichtenberg, T., & Mulders, G. D. (2021). New Evidence for Wet Accretion of Inner Solar System Planetesimals from Meteorites Chelyabinsk and Benenitra. The Planetary Science Journal, 2(6), 244. doi:10.3847/psj/ac3d86

Effect of nickel on the high-pressure phases in FeH

Piet, H., Chizmeshya, A. V. G., Chen, B., Chariton, S., Greenberg, E., Prakapenka, V. B., & Shim, S-H. (2021). Effect of nickel on the high-pressure phases in FeH. Physical Review B, 104(22), None. doi:10.1103/physrevb.104.224106

Net Charges of the Ribosomal Proteins of the S10 and spc Clusters of Halophiles Are Inversely Related to the Degree of Halotolerance

Tirumalai, M. R., Anane-Bediakoh, D., Rajesh, S., & Fox, G. E. (2021). Net Charges of the Ribosomal Proteins of the <i>S10</i> and <i>spc</i> Clusters of Halophiles Are Inversely Related to the Degree of Halotolerance. Microbiology Spectrum, 9(3), None. doi:10.1128/spectrum.01782-21

A simple time-dependent method for calculating spirals: applications to eccentric planets in protoplanetary discs

Zhu, Z., & Zhang, R. M. (2021). A simple time-dependent method for calculating spirals: applications to eccentric planets in protoplanetary discs. Monthly Notices of the Royal Astronomical Society, 510(3), 3986–3999. doi:10.1093/mnras/stab3641

Decreasing extents of Archean serpentinization contributed to the rise of an oxidized atmosphere

Leong, J. A. M., Ely, T., & Shock, E. L. (2021). Decreasing extents of Archean serpentinization contributed to the rise of an oxidized atmosphere. Nature Communications, 12(1), None. doi:10.1038/s41467-021-27589-7

Orbital Dynamics and the Evolution of Planetary Habitability in the AU Mic System

Kane, S. R., Foley, B. J., Hill, M. L., Unterborn, C. T., Barclay, T., Cale, B., … Wittrock, J. M. (2021). Orbital Dynamics and the Evolution of Planetary Habitability in the AU Mic System. The Astronomical Journal, 163(1), 20. doi:10.3847/1538-3881/ac366b

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