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 2023Pristinity and petrogenesis of eucrites

Dhaliwal, J. K., Day, J. M. D., & Tait, K. T. (2023). Pristinity and petrogenesis of eucrites. Meteoritics & Planetary Science. doi:10.1111/maps.13945

Uncertainties in physical properties of Itokawa-like asteroids widen constraints on their formation time

Hallstrom, J., & Bose, M. (2023). Uncertainties in physical properties of Itokawa-like asteroids widen constraints on their formation time. Earth, Planets and Space, 75(1), None. doi:10.1186/s40623-022-01751-x

Stratigraphy of the Cretaceous/Paleogene (K/Pg) boundary at the Global Stratotype Section and Point (GSSP) in El Kef, Tunisia: New insights from the El Kef Coring Project

Jones, H. L., Westerhold, T., Birch, H., Hull, P., Hédi Negra, M., Röhl, U., … Bralower, T. (2023). Stratigraphy of the Cretaceous/Paleogene (K/Pg) boundary at the Global Stratotype Section and Point (GSSP) in El Kef, Tunisia: New insights from the El Kef Coring Project. GSA Bulletin. doi:10.1130/b36487.1

Technosignatures: Frameworks for Their Assessment

Lingam, M., Haqq-Misra, J., Wright, J. T., Huston, M. J., Frank, A., & Kopparapu, R. (2023). Technosignatures: Frameworks for Their Assessment. The Astrophysical Journal, 943(1), 27. doi:10.3847/1538-4357/acaca0

Tracing the history of an unusual compound presolar grain from progenitor star to asteroid parent body host

Singerling, S. A., Nittler, L. R., Barosch, J., Dobrică, E., Brearley, A. J., & Stroud, R. M. (2023). Tracing the history of an unusual compound presolar grain from progenitor star to asteroid parent body host. Geochimica et Cosmochimica Acta. doi:10.1016/j.gca.2023.01.015

Extracellular Fe(III) reductase structure reveals a modular organization enabling S-layer insertion and electron transfer to insoluble substrates

Tikhonova, T. V., Osipov, E. M., Dergousova, N. I., Boyko, K. M., Elizarov, I. M., Gavrilov, S. N., … Popov, V. O. (2023). Extracellular Fe(III) reductase structure reveals a modular organization enabling S-layer insertion and electron transfer to insoluble substrates. Structure. doi:10.1016/j.str.2022.12.010

Flavin Charge Redistribution upon Optical Excitation Is Independent of Solvent Polarity

Van Galen, C. J., Pauszek, R. F., Koder, R. L., & Stanley, R. J. (2023). Flavin Charge Redistribution upon Optical Excitation Is Independent of Solvent Polarity. The Journal of Physical Chemistry B, 127(3), 661–672. doi:10.1021/acs.jpcb.2c07266

Vanadium Electronic Configuration Determination From L2,3 Transition in V-oxide Compounds and Roscoelite

Zanetta, P-M., Drexler, M. S., Barton, I. F., & Zega, T. J. (2023). Vanadium Electronic Configuration Determination From L2,3 Transition in V-oxide Compounds and Roscoelite. Microscopy and Microanalysis. doi:10.1093/micmic/ozac057

How to build a protoribosome: structural insights from the first protoribosome constructs that have proven to be catalytically active

Rivas, M., & Fox, G. E. (2023). How to build a protoribosome: structural insights from the first protoribosome constructs that have proven to be catalytically active. RNA, 29(3), 263–272. doi:10.1261/rna.079417.122

A Catalog of Habitable Zone Exoplanets

Hill, M. L., Bott, K., Dalba, P. A., Fetherolf, T., Kane, S. R., Kopparapu, R., … Ostberg, C. (2023). A Catalog of Habitable Zone Exoplanets. The Astronomical Journal, 165(2), 34. doi:10.3847/1538-3881/aca1c0

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