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 2024Active 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

Effect of Equation of State and Cutoff Density in Smoothed Particle Hydrodynamics Simulations of the Moon-forming Giant Impact

Hull, S. D., Nakajima, M., Hosono, N., Canup, R. M., & Gassmöller, R. (2024). Effect of Equation of State and Cutoff Density in Smoothed Particle Hydrodynamics Simulations of the Moon-forming Giant Impact. The Planetary Science Journal, 5(1), 9. doi:10.3847/psj/ad02f7

Bioverse: The Habitable Zone Inner Edge Discontinuity as an Imprint of Runaway Greenhouse Climates on Exoplanet Demographics

Schlecker, M., Apai, D., Lichtenberg, T., Bergsten, G., Salvador, A., & Hardegree-Ullman, K. K. (2024). Bioverse: The Habitable Zone Inner Edge Discontinuity as an Imprint of Runaway Greenhouse Climates on Exoplanet Demographics. The Planetary Science Journal, 5(1), 3. doi:10.3847/psj/acf57f

Titan’s Atmospheric Albedo Asymmetry and Seasonal Variability Observed through the Cassini Imaging Science Subsystem

Snell, C., & Banfield, D. (2024). Titan’s Atmospheric Albedo Asymmetry and Seasonal Variability Observed through the Cassini Imaging Science Subsystem. The Planetary Science Journal, 5(1), 12. doi:10.3847/psj/ad0bec

Retrievals Applied to a Decision Tree Framework Can Characterize Earthlike Exoplanet Analogs

Young, A. V., Crouse, J., Arney, G., Domagal-Goldman, S., Robinson, T. D., & Bastelberger, S. T. (2024). Retrievals Applied to a Decision Tree Framework Can Characterize Earthlike Exoplanet Analogs. The Planetary Science Journal, 5(1), 7. doi:10.3847/psj/ad09b1

Future of the Search for Life: Workshop Report

Neveu, M., Quinn, R., Barge, L. M., Craft, K. L., German, C. R., Getty, S., … Yang, Z. (2024). Future of the Search for Life: Workshop Report. Astrobiology, 24(1), 114–129. doi:10.1089/ast.2022.0158

Atomic masses with machine learning for the astrophysical r process

Li, M., Sprouse, T. M., Meyer, B. S., & Mumpower, M. R. (2024). Atomic masses with machine learning for the astrophysical r process. Physics Letters B, 848, 138385. doi:10.1016/j.physletb.2023.138385

The Guaymas Basin – A hot spot for hydrothermal generation and anaerobic microbial degradation of hydrocarbons

Teske, A. (2024). The Guaymas Basin – A hot spot for hydrothermal generation and anaerobic microbial degradation of hydrocarbons. International Biodeterioration & Biodegradation, 186, 105700. doi:10.1016/j.ibiod.2023.105700

Dissolved silica affects the bulk iron redox state and recrystallization of minerals generated by photoferrotrophy in a simulated Archean ocean

Zhou, A., Templeton, A. S., & Johnson, J. E. (2024). Dissolved silica affects the bulk iron redox state and recrystallization of minerals generated by photoferrotrophy in a simulated Archean ocean. Geobiology, 22(1), None. doi:10.1111/gbi.12587

Statistical Distribution Function of Orbital Spacings in Planetary Systems

Dietrich, J., Malhotra, R., & Apai, D. (2024). Statistical Distribution Function of Orbital Spacings in Planetary Systems. The Astronomical Journal, 167(2), 46. doi:10.3847/1538-3881/ad1244

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