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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September 2022Microbial protocols for spacecraft: 2. Biocidal effects of Delrin and nylon in sealed compartments may enhance bioburden reductions in planetary spacecraft

Schuerger, A. C., Schwendner, P., & Tucker, R. T. (2022). Microbial protocols for spacecraft: 2. Biocidal effects of Delrin and nylon in sealed compartments may enhance bioburden reductions in planetary spacecraft. International Journal of Astrobiology, None, 1–11. doi:10.1017/s1473550422000349

Calcium isotope constraints on OIB and MORB petrogenesis: The importance of melt mixing

Eriksen, Z. T., & Jacobsen, S. B. (2022). Calcium isotope constraints on OIB and MORB petrogenesis: The importance of melt mixing. Earth and Planetary Science Letters, 593, 117665. doi:10.1016/j.epsl.2022.117665

Mercury isotope evidence for a non-volcanic origin of Hg spikes at the Ordovician-Silurian boundary, South China

Shen, J., Algeo, T. J., & Feng, Q. (2022). Mercury isotope evidence for a non-volcanic origin of Hg spikes at the Ordovician-Silurian boundary, South China. Earth and Planetary Science Letters, 594, 117705. doi:10.1016/j.epsl.2022.117705

Formation and evolution of carbonaceous asteroid Ryugu: Direct evidence from returned samples

Nakamura, T., Matsumoto, M., Amano, K., Enokido, Y., Zolensky, M. E., Mikouchi, T., … Tsuda, Y. (2022). Formation and evolution of carbonaceous asteroid Ryugu: Direct evidence from returned samples. Science. doi:10.1126/science.abn8671

An RNA aptamer that shifts the reduction potential of metabolic cofactors

Samuelian, J. S., Gremminger, T. J., Song, Z., Poudyal, R. R., Li, J., Zhou, Y., … Baum, D. A. (2022). An RNA aptamer that shifts the reduction potential of metabolic cofactors. Nature Chemical Biology. doi:10.1038/s41589-022-01121-4

August 2022Nucleobases in Meteorites to Nucleobases in RNA and DNA?

Krishnamurthy, R., Goldman, A. D., Liberles, D. A., Rogers, K. L., & Tor, Y. (2022). Nucleobases in Meteorites to Nucleobases in RNA and DNA? Journal of Molecular Evolution, 90(5), 328–331. doi:10.1007/s00239-022-10069-x

Composition, Roughness, and Topography from Radar Backscatter at Selk Crater, the Dragonfly Landing Site

Bonnefoy, L. E., Lucas, A., Hayes, A. G., Rodriguez, S., Poggiali, V., Lalich, D. E., … Gall, A. L. (2022). Composition, Roughness, and Topography from Radar Backscatter at Selk Crater, the Dragonfly Landing Site. The Planetary Science Journal, 3(8), 201. doi:10.3847/psj/ac8428

Pitch Angle Distribution of MeV Electrons in the Magnetosphere of Jupiter

Nénon, Q., Miller, L. P., Kollmann, P., Liuzzo, L., Pinto, M., & Witasse, O. (2022). Pitch Angle Distribution of MeV Electrons in the Magnetosphere of Jupiter. Journal of Geophysical Research: Space Physics, 127(8), None. doi:10.1029/2022ja030627

Early silicic magmatism on a differentiated asteroid

Nicklas, R. W., Day, J. M. D., Gardner-Vandy, K. G., & Udry, A. (2022). Early silicic magmatism on a differentiated asteroid. Nature Geoscience. doi:10.1038/s41561-022-00996-1

Potassium-isotope variations of marine sediments adjacent to the Izu-Bonin Trench and Nankai Trough

Parendo, C., Jacobsen, S. B., & Plank, T. (2022). Potassium-isotope variations of marine sediments adjacent to the Izu-Bonin Trench and Nankai Trough. Geochimica et Cosmochimica Acta. doi:10.1016/j.gca.2022.08.007

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