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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September 2020The chemical composition of impact craters on Titan

Solomonidou, A., Neish, C., Coustenis, A., Malaska, M., Le Gall, A., Lopes, R. M. C., … Drossart, P. (2020). The chemical composition of impact craters on Titan. Astronomy & Astrophysics, 641, A16. doi:10.1051/0004-6361/202037866

The Effect of Cosmic Rays on Cometary Nuclei. II. Impact on Ice Composition and Structure

Maggiolo, R., Gronoff, G., Cessateur, G., Moore, W. B., Airapetian, V. S., De Keyser, J., … Hosseini, S. (2020). The Effect of Cosmic Rays on Cometary Nuclei. II. Impact on Ice Composition and Structure. The Astrophysical Journal, 901(2), 136. doi:10.3847/1538-4357/abacc3

Evaporation from the Lunar Magma Ocean Was Not the Mechanism for Fractionation of the Moon’s Moderately Volatile Elements

Tang, H., & Young, E. D. (2020). Evaporation from the Lunar Magma Ocean Was Not the Mechanism for Fractionation of the Moon’s Moderately Volatile Elements. The Planetary Science Journal, 1(2), 49. doi:10.3847/psj/abb23c

Impact shock origin of diamonds in ureilite meteorites

Nestola, F., Goodrich, C. A., Morana, M., Barbaro, A., Jakubek, R. S., Christ, O., … Shaddad, M. H. (2020). Impact shock origin of diamonds in ureilite meteorites. Proceedings of the National Academy of Sciences, None, 201919067. doi:10.1073/pnas.1919067117

Further Characterization of the Pseudo-Symmetrical Ribosomal Region

Rivas, M., & Fox, G. E. (2020). Further Characterization of the Pseudo-Symmetrical Ribosomal Region. Life, 10(9), 201. doi:10.3390/life10090201

Iron Meteorites: Composition, Age, and Origin

Scott, E. R. D. (2020). Iron Meteorites: Composition, Age, and Origin. Oxford Research Encyclopedia of Planetary Science. doi:10.1093/acrefore/9780190647926.013.206

Cryo‐electron microscopy visualization of a large insertion in the 5S ribosomal RNA of the extremely halophilic archaeon Halococcus morrhuae

Tirumalai, M. R., Kaelber, J. T., Park, D. R., Tran, Q., & Fox, G. E. (2020). Cryo‐electron microscopy visualization of a large insertion in the 5S ribosomal RNA of the extremely halophilic archaeon Halococcus morrhuae. FEBS Open Bio, 10(10), 1938–1946. doi:10.1002/2211-5463.12962

Microbial community distribution in variously altered basalts: insights into astrobiology sample site selection

Al, B., E, G., A, S., Cj, R., Nawotniak SE, K., Dss, L., & Slater, G. F. (2020). Microbial community distribution in variously altered basalts: insights into astrobiology sample site selection. Planetary and Space Science, None, 105107. doi:10.1016/j.pss.2020.105107

Carbonyl Sulfide (OCS): Detections in Comets C/2002 T7 (LINEAR), C/2015 ER61 (PanSTARRS), and 21P/Giacobini–Zinner and Stringent Upper Limits in 46P/Wirtanen

Saki, M., Gibb, E. L., Bonev, B. P., Roth, N. X., DiSanti, M. A., Russo, N. D., … Kawakita, H. (2020). Carbonyl Sulfide (OCS): Detections in Comets C/2002 T7 (LINEAR), C/2015 ER61 (PanSTARRS), and 21P/Giacobini–Zinner and Stringent Upper Limits in 46P/Wirtanen. The Astronomical Journal, 160(4), 184. doi:10.3847/1538-3881/aba522

August 2020RNA-Catalyzed Cross-Chiral Polymerization of RNA

Tjhung, K. F., Sczepanski, J. T., Murtfeldt, E. R., & Joyce, G. F. (2020). RNA-Catalyzed Cross-Chiral Polymerization of RNA. Journal of the American Chemical Society, 142(36), 15331–15339. doi:10.1021/jacs.0c05635

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