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 2023Mudpot Geochemistry Reveals Subsurface Geologic Activity

Dahlquist Selking, G. R., Helfrich, P., Timmer, J., & Cox, A. (2023). Mudpot Geochemistry Reveals Subsurface Geologic Activity. ACS Earth and Space Chemistry. doi:10.1021/acsearthspacechem.3c00214

Three Warm Jupiters around Solar-analog Stars Detected with TESS*

Eberhardt, J., Hobson, M. J., Henning, T., Trifonov, T., Brahm, R., Espinoza, N., … Winn, J. N. (2023). Three Warm Jupiters around Solar-analog Stars Detected with TESS*. The Astronomical Journal, 166(6), 271. doi:10.3847/1538-3881/ad06bc

Addressing the Miller Paradox and the Prebiotic Synthesis of Nucleobases

Callahan, M. P., & James Cleaves, H. (2023). Addressing the Miller Paradox and the Prebiotic Synthesis of Nucleobases. ACS Earth and Space Chemistry, 7(11), 2321–2326. doi:10.1021/acsearthspacechem.3c00246

Chemical and genetic characterization of the ungrouped pallasite Lieksa

Chiappe, E. M., Ash, R. D., Luttinen, A., Lukkari, S., Kuva, J., Hilton, C. D., & Walker, R. J. (2023). Chemical and genetic characterization of the ungrouped pallasite Lieksa. Meteoritics & Planetary Science. doi:10.1111/maps.14095

Scaling K2. VII. Evidence For a High Occurrence Rate of Hot Sub-Neptunes at Intermediate Ages

Christiansen, J. L., Zink, J. K., Hardegree-Ullman, K. K., Fernandes, R. B., Hopkins, P. F., Rebull, L. M., … Bhure, S. (2023). Scaling K2. VII. Evidence For a High Occurrence Rate of Hot Sub-Neptunes at Intermediate Ages. The Astronomical Journal, 166(6), 248. doi:10.3847/1538-3881/acf9f9

Nitrogen isotopes reveal independent origins of N2-fixing symbiosis in extant cycad lineages

Kipp, M. A., Stüeken, E. E., Strömberg, C. A. E., Brightly, W. H., Arbour, V. M., Erdei, B., … Buick, R. (2023). Nitrogen isotopes reveal independent origins of N2-fixing symbiosis in extant cycad lineages. Nature Ecology & Evolution. doi:10.1038/s41559-023-02251-1

Phosphorus-bearing molecules PO and PN at the edge of the Galaxy

Koelemay, L. A., Gold, K. R., & Ziurys, L. M. (2023). Phosphorus-bearing molecules PO and PN at the edge of the Galaxy. Nature, 623(7986), 292–295. doi:10.1038/s41586-023-06616-1

Exploring Climate with Obliquity in a Variable-eccentricity Earth-like World

Way, M. J., Georgakarakos, N., & Clune, T. L. (2023). Exploring Climate with Obliquity in a Variable-eccentricity Earth-like World. The Astronomical Journal, 166(6), 227. doi:10.3847/1538-3881/ad0373

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Aucamp, T., Howarth, G. H., Peel, C. J., Costin, G., Day, J. M. D., le Roux, P., Scott, J. M., Greshake, A., & Bartoschewitz, R. (2023). Petrogenesis of the Dar al Gani (DaG) 1.1 Ma ejection-paired olivine-phyric shergottites and implications for ~470 Ma Martian volcanism. Meteoritics and Planetary Science, 58(11), 1654-1676. doi:10.1111/maps.14090

Clumped isotope signatures of abiotic methane: the role of combinatorial isotope effect

Labidi, J., McCollom, T. M., Giunta, T., Lollar, B. S., Young, E. D., & Leavitt, w. (2023). Clumped isotope signatures of abiotic methane: the role of combinatorial isotope effect. None. doi:10.22541/essoar.169947270.05360251/v1

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