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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May 2023Links between large igneous province volcanism and subducted iron formations

Keller, D. S., Tassara, S., Robbins, L. J., Lee, C-T., Ague, J. J., & Dasgupta, R. (2023). Links between large igneous province volcanism and subducted iron formations. Nature Geoscience, 16(6), 527–533. doi:10.1038/s41561-023-01188-1

Mapping Protoplanetary Disk Vertical Structure with CO Isotopologue Line Emission

Law, C. J., Teague, R., Öberg, K. I., Rich, E. A., Andrews, S. M., Bae, J., … Plas, G. v. d. (2023). Mapping Protoplanetary Disk Vertical Structure with CO Isotopologue Line Emission. The Astrophysical Journal, 948(1), 60. doi:10.3847/1538-4357/acb3c4

Carbon 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 2023Water sources and composition of dissolved gases and bubbles in a saline high Arctic spring

Andersen, D. T., McKay, C. P., Pollard, W. H., & Marinova, M. M. (2023). Water sources and composition of dissolved gases and bubbles in a saline high Arctic spring. PLOS ONE, 18(4), e0282877. doi:10.1371/journal.pone.0282877

The Bolometric Bond Albedo of Enceladus

Li, L., Guan, L., Li, S., Luu, C., Heng, K., Fry, P. M., … Dyudina, U. (2023). The Bolometric Bond Albedo of Enceladus. Icarus, 394, 115429. doi:10.1016/j.icarus.2023.115429

Replicated life-history patterns and subsurface origins of the bacterial sister phyla Nitrospirota and Nitrospinota

D’Angelo, T., Goordial, J., Lindsay, M. R., McGonigle, J., Booker, A., Moser, D., … Orcutt, B. N. (2023). Replicated life-history patterns and subsurface origins of the bacterial sister phyla Nitrospirota and Nitrospinota. The ISME Journal, 17(6), 891–902. doi:10.1038/s41396-023-01397-x

Comparisons of the core and mantle compositions of earth analogs from different terrestrial planet formation scenarios

Gu, J. T., Fischer, R. A., Brennan, M. C., Clement, M. S., Jacobson, S. A., Kaib, N. A., … Raymond, S. N. (2023). Comparisons of the core and mantle compositions of earth analogs from different terrestrial planet formation scenarios. Icarus, 394, 115425. doi:10.1016/j.icarus.2023.115425

Characterization of microbiomic and geochemical compositions across the photosynthetic fringe

Weeks, K., Trembath-Reichert, E., Boyer, G., Fecteau, K., Howells, A., De Martini, F., … Shock, E. L. (2023). Characterization of microbiomic and geochemical compositions across the photosynthetic fringe. Frontiers in Microbiology, 14, None. doi:10.3389/fmicb.2023.1176606

On 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

The potential of glyoxylate as a prebiotic source molecule and a reactant in protometabolic pathways—The glyoxylose reaction

Krishnamurthy, R., & Liotta, C. L. (2023). The potential of glyoxylate as a prebiotic source molecule and a reactant in protometabolic pathways—The glyoxylose reaction. Chem, 9(4), 784–797. doi:10.1016/j.chempr.2023.03.007

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