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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December 2023Polycyclic aromatic hydrocarbons in samples of Ryugu formed in the interstellar medium

Zeichner, S. S., Aponte, J. C., Bhattacharjee, S., Dong, G., Hofmann, A. E., Dworkin, J. P., … Eiler, J. M. (2023). Polycyclic aromatic hydrocarbons in samples of Ryugu formed in the interstellar medium. Science, 382(6677), 1411–1416. doi:10.1126/science.adg6304

Characterizing phase transitions for Titan's surface molecules: Implications for Dragonfly

Madan, I., Trainer, M. G., Collins, G. C., & Farnsworth, K. K. (2023). Characterizing phase transitions for Titan's surface molecules: Implications for Dragonfly. Planetary and Space Science, 239, 105804. doi:10.1016/j.pss.2023.105804

Distributions of vanadyl and nickel porphyrins in the Woodford Shale and selective chelation of metal species by different tetrapyrrole configurations

Parks, D. R., & Liu, X-L. (2023). Distributions of vanadyl and nickel porphyrins in the Woodford Shale and selective chelation of metal species by different tetrapyrrole configurations. Organic Geochemistry, 186, 104693. doi:10.1016/j.orggeochem.2023.104693

Exploring the initial landing site area of Dragonfly on Titan: Insights into shear failure and strike-slip faulting at Selk crater

Burkhard, L. M. L., & Fagents, S. A. (2023). Exploring the initial landing site area of Dragonfly on Titan: Insights into shear failure and strike-slip faulting at Selk crater. Icarus, 406, 115764. doi:10.1016/j.icarus.2023.115764

Moving toward a framework for communicating the confidence of life detection

Green, J., Hoehler, T., Neveu, M., Domagal-Goldman, S., Scalice, D., & Voytek, M. (2023). Moving toward a framework for communicating the confidence of life detection. Nature Astronomy, 8(1), 2–3. doi:10.1038/s41550-023-02135-1

Elucidating the morphology and ecology of Eoandromeda octobrachiata from the Ediacaran of South Australia

Botha, T. L., Sherratt, E., Droser, M. L., Gehling, J. G., García-Bellido, D. C. (2023) Elucidating the morphology and ecology of Eoandromeda octobrachiata from the Ediacaran of South Australia; Papers in Paleontology, 9(6), e1530. doi: 10.1002/spp2.1530

Constraining Background N2 Inventories on Directly Imaged Terrestrial Exoplanets to Rule Out O2 False Positives

Hall, S., Krissansen-Totton, J., Robinson, T., Salvador, A. Fortney, J. J. (2023) Constraining Background N2 Inventories on Directly Imaged Terrestrial Exoplanets to Rule Out O2 False Positives, The Astronomical Journal, 166 254. doi: 10.3847/1538-3881/ad03e9

The Importance of the Upper Atmosphere to CO/O2 Runaway on Habitable Planets Orbiting Low-mass Stars

Ranjan, S., Schwieterman, E. W., Leung, M., Harman, C. E., Hu, R. (2023) The Importance of the Upper Atmosphere to CO/O2 Runaway on Habitable Planets Orbiting Low-mass Stars. The Astrophysical Journal Letters, 958 L15. doi: 10.3847/2041-8213/ad037c

November 2023Investigating Europa’s Habitability with the Europa Clipper

Vance, S. D., Craft, K. L., Shock, E., Schmidt, B. E., Lunine, J., Hand, K. P., … Elder, C. M. (2023). Investigating Europa’s Habitability with the Europa Clipper. Space Science Reviews, 219(8), None. doi:10.1007/s11214-023-01025-2

The important role of fluid chemistry in the hydrothermal alteration of ordinary chondrites: Insights from halite and sphalerite in the Sidi El Habib 001 (H5) meteorite

Che, S., Domanik, K. J., Chang, Y-J., & Zega, T. J. (2023). The important role of fluid chemistry in the hydrothermal alteration of ordinary chondrites: Insights from halite and sphalerite in the Sidi El Habib 001 (H5) meteorite. Earth and Planetary Science Letters, 621, 118374. doi:10.1016/j.epsl.2023.118374

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