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 2022Migration Traps as the Root Cause of the Kepler Dichotomy

Zawadzki, B., Carrera, D., & Ford, E. B. (2022). Migration Traps as the Root Cause of the Kepler Dichotomy. The Astrophysical Journal, 937(2), 53. doi:10.3847/1538-4357/ac8b04

Searching for technosignatures in exoplanetary systems with current and future missions

Haqq-Misra, J., Schwieterman, E. W., Socas-Navarro, H., Kopparapu, R., Angerhausen, D., Beatty, T. G., … Apai, D. (2022). Searching for technosignatures in exoplanetary systems with current and future missions. Acta Astronautica, 198, 194–207. doi:10.1016/j.actaastro.2022.05.040

Deuterium Isotope Fractionation of Polycyclic Aromatic Hydrocarbons in Meteorites as an Indicator of Interstellar/Protosolar Processing History

Graham, H. V., Elsila, J. E., Dworkin, J. P., Sandford, S. A., & Aponte, J. C. (2022). Deuterium Isotope Fractionation of Polycyclic Aromatic Hydrocarbons in Meteorites as an Indicator of Interstellar/Protosolar Processing History. Life, 12(9), 1368. doi:10.3390/life12091368

Spectral Detection of Nanophase Iron Minerals Produced by Fe(III)-Reducing Hyperthermophilic Crenarchaea

Kashyap, S., Sklute, E. C., Wang, P., Tague Jr., T. J., Dyar, M. D., & Holden, J. F. (2022). Spectral Detection of Nanophase Iron Minerals Produced by Fe(III)-Reducing Hyperthermophilic Crenarchaea. Astrobiology. doi:10.1089/ast.2022.0042

Physiological and metabolic responses of chemolithoautotrophic NO3−$$ {\mathrm{NO}}_3^{-} $$ reducers to high hydrostatic pressure

Pérez‐Rodríguez, I., Sievert, S. M., Fogel, M. L., & Foustoukos, D. I. (2022). Physiological and metabolic responses of chemolithoautotrophic NO3−$$ {\mathrm{NO}}_3^{-} $$ reducers to high hydrostatic pressure. Geobiology. doi:10.1111/gbi.12522

Orbitally paced global oceanic deoxygenation decoupled from volcanic CO2 emission during the middle Cretaceous Oceanic Anoxic Event 1b (Aptian-Albian transition)

Wang, Y., Bodin, S., Blusztajn, J. S., Ullmann, C., & Nielsen, S. G. (2022). Orbitally paced global oceanic deoxygenation decoupled from volcanic CO2 emission during the middle Cretaceous Oceanic Anoxic Event 1b (Aptian-Albian transition). Geology. doi:10.1130/g50553.1

Expansion of the global RNA virome reveals diverse clades of bacteriophages

Neri, U., Wolf, Y. I., Roux, S., Camargo, A. P., Lee, B., Kazlauskas, D., … Wang, Z. (2022). Expansion of the global RNA virome reveals diverse clades of bacteriophages. Cell. doi:10.1016/j.cell.2022.08.023

Microbial 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

Let It Go: Geophysically Driven Ejection of the Haumea Family Members

Noviello, J. L., Desch, S. J., Neveu, M., Proudfoot, B. C. N., & Sonnett, S. (2022). Let It Go: Geophysically Driven Ejection of the Haumea Family Members. The Planetary Science Journal, 3(9), 225. doi:10.3847/psj/ac8e03

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