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 2024Oxygen Isotopic Variations in the Calcium, Aluminum-rich Inclusion–forming Region Recorded by a Single Refractory Inclusion from the CO3.1 Carbonaceous Chondrite Dar al Gani 083

Ebert, S., Nagashima, K., Krot, A. N., Patzek, M., & Bischoff, A. (2024). Oxygen Isotopic Variations in the Calcium, Aluminum-rich Inclusion–forming Region Recorded by a Single Refractory Inclusion from the CO3.1 Carbonaceous Chondrite Dar al Gani 083. The Astrophysical Journal, 966(1), 10. doi:10.3847/1538-4357/ad2ea8

Synthetic aperture radar backscatter is influenced by bubbles at the ice/water interface of an Antarctic lake

Gaudreau, A., Lacelle, D., & Andersen, D. T. (2024). Synthetic aperture radar backscatter is influenced by bubbles at the ice/water interface of an Antarctic lake. Communications Earth & Environment, 5(1), None. doi:10.1038/s43247-024-01370-2

Ice chemistry modeling of active phase comets: Hale-Bopp

Willis, E. R., Christianson, D. A., & Garrod, R. T. (2024). Ice chemistry modeling of active phase comets: Hale-Bopp. Icarus, None, 116097. doi:10.1016/j.icarus.2024.116097

Moderate D/H ratios in methane ice on Eris and Makemake as evidence of hydrothermal or metamorphic processes in their interiors: Geochemical analysis

Glein, C. R., Grundy, W. M., Lunine, J. I., Wong, I., Protopapa, S., Pinilla-Alonso, N., … Souza-Feliciano, A. C. (2024). Moderate D/H ratios in methane ice on Eris and Makemake as evidence of hydrothermal or metamorphic processes in their interiors: Geochemical analysis. Icarus, 412, 115999. doi:10.1016/j.icarus.2024.115999

Rapid Diagenesis and Microbial Biosignature Degradation in Spring Carbonates from Crystal Geyser, Utah

Lima-Zaloumis, J., Farmer, J. D., & Trembath-Reichert, E. (2024). Rapid Diagenesis and Microbial Biosignature Degradation in Spring Carbonates from Crystal Geyser, Utah. Journal of Sedimentary Research. doi:10.2110/jsr.2023.028

Propyne: Determination of Physical Properties and Unit Cell Parameters under Titan-Relevant Conditions

Marlin, T. C., Cable, M. L., Vu, T. H., Maynard-Casely, H. E., Ugelow, M., Anderson, C., & Hodyss, R. (2024). Propyne: Determination of Physical Properties and Unit Cell Parameters under Titan-Relevant Conditions. ACS Earth and Space Chemistry, 8(5), 957–964. doi:10.1021/acsearthspacechem.3c00303

Vol. 56, Issue 4 (AASTCS 10: Extreme Solar Systems V)

Vol. 56, Issue 4 (AASTCS 10: Extreme Solar Systems V) (2024). Bulletin of the AAS, 56(4), None. doi:10.3847/25c2cfeb.e7ccaa3b

Fossil-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

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