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 2024Metal-binding amino acid ligands commonly found in metalloproteins differentially fractionate copper isotopes

Selden, C. R., Schilling, K., Godfrey, L., & Yee, N. (2024). Metal-binding amino acid ligands commonly found in metalloproteins differentially fractionate copper isotopes. Scientific Reports, 14(1), None. doi:10.1038/s41598-024-52091-7

Active microbiota persist in dry permafrost and active layer from elephant head, Antarctica

Wood, C., Bruinink, A., Trembath-Reichert, E., Wilhelm, M. B., Vidal, C., Balaban, E., … Goordial, J. (2024). Active microbiota persist in dry permafrost and active layer from elephant head, Antarctica. ISME Communications. doi:10.1093/ismeco/ycad002

October 2023TOI-199 b: A Well-characterized 100 day Transiting Warm Giant Planet with TTVs Seen from Antarctica

Hobson, M. J., Trifonov, T., Henning, T., Jordán, A., Rojas, F., Espinoza, N., … Zhou, G. (2023). TOI-199 b: A Well-characterized 100 day Transiting Warm Giant Planet with TTVs Seen from Antarctica. The Astronomical Journal, 166(5), 201. doi:10.3847/1538-3881/acfc1d

May 2023Carbon isotope fractionation by an ancestral rubisco suggests that biological proxies for CO2 through geologic time should be reevaluated

Wang, R. Z., Nichols, R. J., Liu, A. K., Fischer, W. W. (2023). Carbon isotope fractionation by an ancestral rubisco suggests that biological proxies for CO2 through geologic time should be reevaluated. PNAS, 120 (20), e2300466120. doi:10.1073/pnas.2300466120

April 2023On the significance of oxygen-isotope variations in chondrules from carbonaceous chondrites

Libourel, G., Nagashima, K., Portail, M., & Krot, A. N. (2023). On the significance of oxygen-isotope variations in chondrules from carbonaceous chondrites. Geochimica et Cosmochimica Acta, 346, 102–120. doi:10.1016/j.gca.2023.01.026

March 202340Ar/39Ar ages of L4, H5, EL6, and feldspathic ureilitic clasts from the Almahata Sitta polymict ureilite (asteroid 2008 TC3)

Turrin, B.D., Lindsay, F., Delaney, J.S., Park, J., Herzog, G.F., Swisher Jr, C., Goodrich, C.A. (2023) 40Ar/39Ar ages of L4, H5, EL6, and feldspathic ureilitic clasts from the Almahata Sitta polymict ureilite (asteroid 2008 TC3). Meteoritics and Planetary Science. doi: 10.1111/maps.13953

December 2022A sedimentary record of the evolution of the global marine phosphorus cycle

Planavsky, N. J., Asael, D., Rooney, A. D., Robbins, L. J., Gill, B. C., Dehler, C. M., … Reinhard, C. T. (2022). A sedimentary record of the evolution of the global marine phosphorus cycle. Geobiology. doi:10.1111/gbi.12536

Mineral-catalysed formation of marine NO and N2O on the anoxic early Earth

Buessecker, S., Imanaka, H., Ely, T., Hu, R., Romaniello, S. J., & Cadillo-Quiroz, H. (2022). Mineral-catalysed formation of marine NO and N2O on the anoxic early Earth. Nature Geoscience, 15(12), 1056–1063. doi:10.1038/s41561-022-01089-9

Surface‐To‐Ocean Exchange by the Sinking of Impact Generated Melt Chambers on Europa

Carnahan, E., Vance, S. D., Cox, R., & Hesse, M. A. (2022). Surface‐To‐Ocean Exchange by the Sinking of Impact Generated Melt Chambers on Europa. Geophysical Research Letters, 49(24), None. doi:10.1029/2022gl100287

Evidence for the volatile-rich composition of a 1.5-Earth-radius planet

Piaulet, C., Benneke, B., Almenara, J. M., Dragomir, D., Knutson, H. A., Thorngren, D., … Wong, I. (2022). Evidence for the volatile-rich composition of a 1.5-Earth-radius planet. Nature Astronomy. doi:10.1038/s41550-022-01835-4

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