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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July 2022Islands Within Islands: Bacterial Phylogenetic Structure and Consortia in Hawaiian Lava Caves and Fumaroles

Prescott, R. D., Zamkovaya, T., Donachie, S. P., Northup, D. E., Medley, J. J., Monsalve, N., … Boston, P. J. (2022). Islands Within Islands: Bacterial Phylogenetic Structure and Consortia in Hawaiian Lava Caves and Fumaroles. Frontiers in Microbiology, 13, None. doi:10.3389/fmicb.2022.934708

Sources and Fluxes of Organic Carbon and Energy to Microorganisms in Global Marine Sediments

Bradley, J. A., Arndt, S., Amend, J. P., Burwicz-Galerne, E., & LaRowe, D. E. (2022). Sources and Fluxes of Organic Carbon and Energy to Microorganisms in Global Marine Sediments. Frontiers in Microbiology, 13, None. doi:10.3389/fmicb.2022.910694

Anoxic photochemical weathering of pyrite on Archean continents

Hao, J., Liu, W., Goff, J. L., Steadman, J. A., Large, R. R., Falkowski, P. G., & Yee, N. (2022). Anoxic photochemical weathering of pyrite on Archean continents. Science Advances, 8(26), None. doi:10.1126/sciadv.abn2226

Evaluating the Evidence for Water World Populations Using Mixture Models

Neil, A. R., Liston, J., & Rogers, L. A. (2022). Evaluating the Evidence for Water World Populations Using Mixture Models. The Astrophysical Journal, 933(1), 63. doi:10.3847/1538-4357/ac609b

The Volatile Carbon-to-oxygen Ratio as a Tracer for the Formation Locations of Interstellar Comets

Seligman, D. Z., Rogers, L. A., Cabot, S. H. C., Noonan, J. W., Kareta, T., Mandt, K. E., … Clepper, E. V. (2022). The Volatile Carbon-to-oxygen Ratio as a Tracer for the Formation Locations of Interstellar Comets. The Planetary Science Journal, 3(7), 150. doi:10.3847/psj/ac75b5

The Dynamical Viability of an Extended Jupiter Ring System

Kane, S. R., & Li, Z. (2022). The Dynamical Viability of an Extended Jupiter Ring System. The Planetary Science Journal, 3(7), 179. doi:10.3847/psj/ac7de6

Methods and limitations of stable isotope measurements via direct elution of chromatographic peaks using gas chromotography-Orbitrap mass spectrometry

Zeichner, S. S., Wilkes, E. B., Hofmann, A. E., Chimiak, L., Sessions, A. L., Makarov, A., & Eiler, J. M. (2022). Methods and limitations of stable isotope measurements via direct elution of chromatographic peaks using gas chromotography-Orbitrap mass spectrometry. International Journal of Mass Spectrometry, 477, 116848. doi:10.1016/j.ijms.2022.116848

TEM analyses of in situ presolar grains from unequilibrated ordinary chondrite LL3.0 Semarkona

Singerling, S. A., Nittler, L. R., Barosch, J., Dobrică, E., Brearley, A. J., & Stroud, R. M. (2022). TEM analyses of in situ presolar grains from unequilibrated ordinary chondrite LL3.0 Semarkona. Geochimica et Cosmochimica Acta, 328, 130–152. doi:10.1016/j.gca.2022.05.007

Vanadium isotope fractionation during hydrothermal sedimentation: Implications for the vanadium cycle in the oceans

Wu, F., Owens, J. D., German, C. R., Mills, R. A., & Nielsen, S. G. (2022). Vanadium isotope fractionation during hydrothermal sedimentation: Implications for the vanadium cycle in the oceans. Geochimica et Cosmochimica Acta, 328, 168–184. doi:10.1016/j.gca.2022.05.002

Sulfur cycling at natural hydrocarbon and sulfur seeps in Santa Paula Creek, CA

Aronson, H. S., Monteverde, D. R., Barnes, B. D., Johnson, B. R., Zawaski, M. J., Speth, D. R., … , . (2022). Sulfur cycling at natural hydrocarbon and sulfur seeps in Santa Paula Creek, <scp>CA</scp>. Geobiology. doi:10.1111/gbi.12512

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