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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September 2024Nucleosynthetic Isotope Anomalies in Cosmochemistry and Geochemistry

Bermingham, K., & Meyer, B. (2024). Nucleosynthetic Isotope Anomalies in Cosmochemistry and Geochemistry. Oxford Research Encyclopedia of Planetary Science. doi:10.1093/acrefore/9780190647926.013.144

Fe/Mg-Silicate Chemical Gardens as Analogs to Silicate-Rich Hydrothermal Chimneys on Early Earth and Mars

Carman, N. A., Hausrath, E. M., Celestian, A., Chavez, J., Hermis, N., LaRowe, D. E., … Barge, L. M. (2024). Fe/Mg-Silicate Chemical Gardens as Analogs to Silicate-Rich Hydrothermal Chimneys on Early Earth and Mars. ACS Earth and Space Chemistry. doi:10.1021/acsearthspacechem.4c00109

A new motile animal with implications for the evolution of axial polarity from the Ediacaran of South Australia

Evans, S. D., Hughes, I. V., Hughes, E. B., Dzaugis, P. W., Dzaugis, M. P., Gehling, J. G., … Droser, M. L. (2024). A new motile animal with implications for the evolution of axial polarity from the Ediacaran of South Australia. Evolution & Development. doi:10.1111/ede.12491

The erosion of large primary atmospheres typically leaves behind substantial secondary atmospheres on temperate rocky planets

Krissansen-Totton, J., Wogan, N., Thompson, M., & Fortney, J. J. (2024). The erosion of large primary atmospheres typically leaves behind substantial secondary atmospheres on temperate rocky planets. Nature Communications, 15(1), None. doi:10.1038/s41467-024-52642-6

Viral activity in lake analogs of anoxic early Earth oceans

Varona, N. S., Wallace, B. A., Bosco-Santos, A., Mullinax, J., Stiffler, A. K., O’Beirne, M. D., … Silveira, C. B. (2024). Viral activity in lake analogs of anoxic early Earth oceans. None. doi:10.21203/rs.3.rs-5112784/v1

Abiotic Production of Dimethyl Sulfide, Carbonyl Sulfide, and Other Organosulfur Gases via Photochemistry: Implications for Biosignatures and Metabolic Potential

Reed, N. W., Shearer, R. L., McGlynn, S. E., Wing, B. A., Tolbert, M. A., & Browne, E. C. (2024). Abiotic Production of Dimethyl Sulfide, Carbonyl Sulfide, and Other Organosulfur Gases via Photochemistry: Implications for Biosignatures and Metabolic Potential. The Astrophysical Journal Letters, 973(2), L38. doi:10.3847/2041-8213/ad74da

August 2024Marine sulfate sulfur isotopic evidence for enhanced terrestrial weathering and expansion of oceanic anoxia during the Devonian-Carboniferous transition

Liu, J., Luo, G., Algeo, T. J., Qie, W., Yao, L., Huang, J., & Xie, S. (2024). Marine sulfate sulfur isotopic evidence for enhanced terrestrial weathering and expansion of oceanic anoxia during the Devonian-Carboniferous transition. Global and Planetary Change, 239, 104494. doi:10.1016/j.gloplacha.2024.104494

Major volatiles in the Earth's mantle beneath mid-ocean ridges and intraplate ocean islands

Dasgupta, R., & Aubaud, C. (2025). Major volatiles in the Earth's mantle beneath mid-ocean ridges and intraplate ocean islands. Treatise on Geochemistry, None, 381–423. doi:10.1016/b978-0-323-99762-1.00090-5

Climatic Effects of Ocean Salinity on M Dwarf Exoplanets

Batra, K., & Olson, S. L. (2024). Climatic Effects of Ocean Salinity on M Dwarf Exoplanets. The Astrophysical Journal Letters, 971(1), L11. doi:10.3847/2041-8213/ad63a5

Rotating particle pair produces hot complex plasma crystals

Carmichael, C., Ortiz, J. M., Adamson, P., Matthews, L., & Hyde, T. (2024). Rotating particle pair produces hot complex plasma crystals. Physical Review E, 110(2), None. doi:10.1103/physreve.110.025205

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