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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April 2024Fossil-calibrated molecular clock data enable reconstruction of steps leading to differentiated multicellularity and anisogamy in the Volvocine algae

Lindsey, C. R., Knoll, A. H., Herron, M. D., & Rosenzweig, F. (2024). Fossil-calibrated molecular clock data enable reconstruction of steps leading to differentiated multicellularity and anisogamy in the Volvocine algae. BMC Biology, 22(1), None. doi:10.1186/s12915-024-01878-1

Probing the Oxidation State of Ocean Worlds with SUDA: Fe (ii) and Fe (iii) in Ice Grains

Napoleoni, M., Hortal Sánchez, L., Khawaja, N., Abel, B., Glein, C. R., Hillier, J. K., & Postberg, F. (2024). Probing the Oxidation State of Ocean Worlds with SUDA: Fe (ii) and Fe (iii) in Ice Grains. The Planetary Science Journal, 5(4), 95. doi:10.3847/psj/ad2462

End of the Cretaceous

Gulick, S. P. S. (2024). End of the Cretaceous. Geological Society, London, Special Publications, 544(1), None. doi:10.1144/sp544-2023-176

Ultra-refractory metal assemblages in calcium-aluminum-rich inclusions: Probes of the inner solar protoplanetary disk

Ramprasad, T., Manga, V. R., Seifert, L. B., Mane, P., & Zega, T. J. (2024). Ultra-refractory metal assemblages in calcium-aluminum-rich inclusions: Probes of the inner solar protoplanetary disk. Geochimica et Cosmochimica Acta. doi:10.1016/j.gca.2024.04.028

Impact‐Generated Fragmentation, Porosity, and Permeability Within the Chicxulub Impact Structure

Alexander, A. M., Marchi, S., Johnson, B. C., Wiggins, S. E., & Kring, D. A. (2024). Impact‐Generated Fragmentation, Porosity, and Permeability Within the Chicxulub Impact Structure. Earth and Space Science, 11(5), None. doi:10.1029/2023ea003383

Petrogenesis of Erg Chech 002 Achondrite and Implications for an Altered Magma Ocean

Jin, Z., Zhang, Y., Bose, M., Glynn, S., & Couffignal, F. (2024). Petrogenesis of Erg Chech 002 Achondrite and Implications for an Altered Magma Ocean. The Astrophysical Journal, 965(1), 24. doi:10.3847/1538-4357/ad2ea7

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HST astrometry of the closest brown dwarfs-II. Improved parameters and constraints on a third body

Bedin, L. R., Dietrich, J. , Burgasser, A. J. , Apai, D., Libralato, M. , Griggio, M., Fontanive, C., Pourbaix, D. (2024) HST astrometry of the closest brown dwarfs-II. Improved parameters and constraints on a third body, Astronomical Notes: Astronomische Nachrichten, 345(1), e230158. doi: 10.1002/asna.20230158

A new species of the iconic triradial Ediacaran genus Tribrachidium from Nilpena Ediacara National Park, Flinders Ranges (South Australia)

Botha, T. L., García-Bellido, D. C. (2024) A new species of the iconic triradial Ediacaran genus Tribrachidium from Nilpena Ediacara National Park, Flinders Ranges (South Australia). Journal of Paleontology, 98(1), 1-12. doi: 10.1017/jpa.2023.99

Heat-flux-limited Cloud Activity and Vertical Mixing in Giant Planet Atmospheres with an Application to Uranus and Neptune

Ge, H., Li, C., Zhang, X., & Moeckel, C. (2024) Heat-flux-limited Cloud Activity and Vertical Mixing in Giant Planet Atmospheres with an Application to Uranus and Neptune. The Planetary Science Journal, 5(4). doi: 10.3847/PSJ/ad0ed3

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