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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July 2024Influence of Orbit and Mass Constraints on Reflected Light Characterization of Directly Imaged Rocky Exoplanets

Salvador, A., Robinson, T. D., Fortney, J. J., & Marley, M. S. (2024). Influence of Orbit and Mass Constraints on Reflected Light Characterization of Directly Imaged Rocky Exoplanets. The Astrophysical Journal Letters, 969(1), L22. doi:10.3847/2041-8213/ad54c5

Clumped Isotope Signatures of Abiotic Methane: The Role of the Combinatorial Isotope Effect

Labidi, J., McCollom, T. M., Giunta, T., Sherwood Lollar, B., Leavitt, W. D., & Young, E. D. (2024). Clumped Isotope Signatures of Abiotic Methane: The Role of the Combinatorial Isotope Effect. Journal of Geophysical Research: Solid Earth, 129(7), None. doi:10.1029/2023jb028194

Updated Spectral Characteristics for the Ultracool Dwarf TRAPPIST-1

Davoudi, F., Rackham, B. V., Gillon, M., De Wit, J., Burgasser, A. J., Delrez, L., … Ducrot, E. (2024). Updated Spectral Characteristics for the Ultracool Dwarf TRAPPIST-1. The Astrophysical Journal Letters, 970(1), L4. doi:10.3847/2041-8213/ad5c6c

Variable and Large Losses of Diagnostic Biomarkers After Simulated Cosmic Radiation Exposure in Clay- and Carbonate-Rich Mars Analog Samples

Roussel, A., McAdam, A. C., Pavlov, A. A., Knudson, C. A., Achilles, C. N., Foustoukos, D. I., … Johnson, S. S. (2024). Variable and Large Losses of Diagnostic Biomarkers After Simulated Cosmic Radiation Exposure in Clay- and Carbonate-Rich Mars Analog Samples. Astrobiology, 24(7), 669–683. doi:10.1089/ast.2023.0123

JWST-TST High Contrast: Achieving Direct Spectroscopy of Faint Substellar Companions Next to Bright Stars with the NIRSpec Integral Field Unit

Ruffio, J-B., Perrin, M. D., Hoch, K. K. W., Kammerer, J., Konopacky, Q. M., Pueyo, L., … Matt Mountain, C. (2024). JWST-TST High Contrast: Achieving Direct Spectroscopy of Faint Substellar Companions Next to Bright Stars with the NIRSpec Integral Field Unit. The Astronomical Journal, 168(2), 73. doi:10.3847/1538-3881/ad5281

Multicellular magnetotactic bacteria are genetically heterogeneous consortia with metabolically differentiated cells

Schaible, G. A., Jay, Z. J., Cliff, J., Schulz, F., Gauvin, C., Goudeau, D., … Hatzenpichler, R. (2024). Multicellular magnetotactic bacteria are genetically heterogeneous consortia with metabolically differentiated cells. PLOS Biology, 22(7), e3002638. doi:10.1371/journal.pbio.3002638

The South Pole‐Aitken Basin: Constraints on Impact Excavation, Melt, and Ejecta

Citron, R. I., Smith, D. E., Stewart, S. T., Hood, L. L., & Zuber, M. T. (2024). The South Pole‐Aitken Basin: Constraints on Impact Excavation, Melt, and Ejecta. Geophysical Research Letters, 51(14), None. doi:10.1029/2024gl110034

A Framework for the Origin and Deep Cycles of Volatiles in Rocky Exoplanets

Dasgupta, R., Pathak, D., & Maurice, M. (2024). A Framework for the Origin and Deep Cycles of Volatiles in Rocky Exoplanets. Reviews in Mineralogy and Geochemistry, 90(1), 323–373. doi:10.2138/rmg.2024.90.10

Fleeting but Not Forgotten: The Imprint of Escaping Hydrogen Atmospheres on Super-Earth Interiors

Rogers, J. G., Schlichting, H. E., & Young, E. D. (2024). Fleeting but Not Forgotten: The Imprint of Escaping Hydrogen Atmospheres on Super-Earth Interiors. The Astrophysical Journal, 970(1), 47. doi:10.3847/1538-4357/ad5287

June 2024Geological context and significance of the clay-sulfate transition region in Mount Sharp, Gale crater, Mars: An integrated assessment based on orbiter and rover data

Meyer, M. J., Milliken, R. E., Stack, K. M., Edgar, L. A., Rampe, E. B., Turner, M. L., … Sheppard, R. Y. (2024). Geological context and significance of the clay-sulfate transition region in Mount Sharp, Gale crater, Mars: An integrated assessment based on orbiter and rover data. Geological Society of America Bulletin, 137(1-2), 82–115. doi:10.1130/b37355.1

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