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 2023Chasing rainbows and ocean glints: Inner working angle constraints for the Habitable Worlds Observatory

Vaughan, S. R., Gebhard, T. D., Bott, K., Casewell, S. L., Cowan, N. B., Doelman, D. S., … Snik, F. (2023). Chasing rainbows and ocean glints: Inner working angle constraints for the Habitable Worlds Observatory. Monthly Notices of the Royal Astronomical Society, 524(4), 5477–5485. doi:10.1093/mnras/stad2127

Epitaxial fluorapatite vein in Northwest Africa 998 host apatite: Clues on the geochemistry of late hydrothermal fluids on Mars

Martínez, M., Shearer, C. K., & Brearley, A. J. (2023). Epitaxial fluorapatite vein in Northwest Africa 998 host apatite: Clues on the geochemistry of late hydrothermal fluids on Mars. Meteoritics & Planetary Science. doi:10.1111/maps.14042

Mulling and nulling the coeval rise of Ediacaran oxygen and animals

Ostrander, C. M. (2023). Mulling and nulling the coeval rise of Ediacaran oxygen and animals. Earth and Planetary Science Letters, 614, 118187. doi:10.1016/j.epsl.2023.118187

First Optical Constants of Laboratory-generated Organic Refractory Materials (Tholins) Produced in the NASA Ames COSmIC Facility from the Visible to the Near Infrared (0.4–1.6 μm): Application to Titan’s Aerosols

Sciamma-O’Brien, E., Roush, T. L., Rannou, P., Dubois, D., & Salama, F. (2023). First Optical Constants of Laboratory-generated Organic Refractory Materials (Tholins) Produced in the NASA Ames COSmIC Facility from the Visible to the Near Infrared (0.4–1.6 μm): Application to Titan’s Aerosols. The Planetary Science Journal, 4(7), 121. doi:10.3847/psj/acd83f

Microwave‐Assisted One‐Step Synthesis of 2′,3′‐Cyclic Phosphates of Nucleosides

Veena, K. S., Cruz, H. A., & Krishnamurthy, R. (2023). Microwave‐Assisted One‐Step Synthesis of 2′,3′‐Cyclic Phosphates of Nucleosides. Current Protocols, 3(7), None. doi:10.1002/cpz1.834

Planetary Protection Implementation and Verification Approach for the Mars 2020 Mission

Cooper, M., Chen, F., Guan, L., Hinzer, A. A., Kazarians, G., Ly, C., … Stott, K. (2023). Planetary Protection Implementation and Verification Approach for the Mars 2020 Mission. Astrobiology. doi:10.1089/ast.2022.0046

Dehydrated thin film media to rapidly estimate bioburden for planetary protection flight implementation

Dean, Z. S., Stott, K., Schubert, W., Seto, E. P., & Chandrapati, S. (2023). Dehydrated thin film media to rapidly estimate bioburden for planetary protection flight implementation. International Journal of Astrobiology, None, 1–15. doi:10.1017/s1473550423000149

Evidence for a carbon-rich Mercury from the distribution of low-reflectance material (LRM) associated with large impact basins

Lark, L. H., Head, J. W., & Huber, C. (2023). Evidence for a carbon-rich Mercury from the distribution of low-reflectance material (LRM) associated with large impact basins. Earth and Planetary Science Letters, 613, 118192. doi:10.1016/j.epsl.2023.118192

Evidence for the anaerobic biodegradation of higher molecular weight hydrocarbons in the Guaymas Basin

Liang, R., Davidova, I. A., Teske, A., & Suflita, J. M. (2023). Evidence for the anaerobic biodegradation of higher molecular weight hydrocarbons in the Guaymas Basin. International Biodeterioration & Biodegradation, 181, 105621. doi:10.1016/j.ibiod.2023.105621

The evolution and spread of sulfur cycling enzymes reflect the redox state of the early Earth

Mateos, K., Chappell, G., Klos, A., Le, B., Boden, J., Stüeken, E., & Anderson, R. (2023). The evolution and spread of sulfur cycling enzymes reflect the redox state of the early Earth. Science Advances, 9(27), None. doi:10.1126/sciadv.ade4847

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