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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January 2023Planetary Mapping Using Deep Learning: A Method to Evaluate Feature Identification Confidence Applied to Habitats in Mars-Analog Terrain

Phillips, M. S., Moersch, J. E., Cabrol, N. A., Candela, A., Wettergreen, D., Warren-Rhodes, K., … , . (2023). Planetary Mapping Using Deep Learning: A Method to Evaluate Feature Identification Confidence Applied to Habitats in Mars-Analog Terrain. Astrobiology, 23(1), 76–93. doi:10.1089/ast.2022.0014

Microbial Motility at the Bottom of North America: Digital Holographic Microscopy and Genomic Motility Signatures in Badwater Spring, Death Valley National Park

Snyder, C., Centlivre, J. P., Bhute, S., Shipman, G., Friel, A. D., Viver, T., … Hedlund, B. P. (2023). Microbial Motility at the Bottom of North America: Digital Holographic Microscopy and Genomic Motility Signatures in Badwater Spring, Death Valley National Park. Astrobiology. doi:10.1089/ast.2022.0090

December 2022A sedimentary record of the evolution of the global marine phosphorus cycle

Planavsky, N. J., Asael, D., Rooney, A. D., Robbins, L. J., Gill, B. C., Dehler, C. M., … Reinhard, C. T. (2022). A sedimentary record of the evolution of the global marine phosphorus cycle. Geobiology. doi:10.1111/gbi.12536

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Subzero, saline incubations of Colwellia psychrerythraea reveal strategies and biomarkers for sustained life in extreme icy environments

Mudge, M.C., Nunn, B.L., Firth, F., Ewert, M., Hales, K., Fondrie, W.E., Noble, W.S., Toner, J., Light, B., Junge, K.A. (2021). Subzero, saline incubations of Colwellia psychrerythraea reveal strategies and biomarkers for sustained life in extreme icy environments. Environmental Microbiology, 23, 7. doi: 10.1111/1462-2920.15485

Decoupling of respiration rates and abundance in marine prokaryoplankton

Munson-McGee, J. H., Lindsay, M. R., Sintes, E., Brown, J. M., D’Angelo, T., Brown, J., … Stepanauskas, R. (2022). Decoupling of respiration rates and abundance in marine prokaryoplankton. Nature, 612(7941), 764–770. doi:10.1038/s41586-022-05505-3

November 2022Toward Detecting Biosignatures of DNA, Lipids, and Metabolic Intermediates from Bacteria in Ice Grains Emitted by Enceladus and Europa

Dannenmann, M., Klenner, F., Bönigk, J., Pavlista, M., Napoleoni, M., Hillier, J., … Postberg, F. (2022). Toward Detecting Biosignatures of DNA, Lipids, and Metabolic Intermediates from Bacteria in Ice Grains Emitted by Enceladus and Europa. Astrobiology. doi:10.1089/ast.2022.0063

Brine Volume Fraction as a Habitability Metric for Europa's Ice Shell

Wolfenbarger, N. S., Fox‐Powell, M. G., Buffo, J. J., Soderlund, K. M., & Blankenship, D. D. (2022). Brine Volume Fraction as a Habitability Metric for Europa's Ice Shell. Geophysical Research Letters, 49(22), None. doi:10.1029/2022gl100586

Assessing marine communities and carbon cycling that sustained shallow-marine ecosystems on Silurian, reef-rimmed carbonate platforms

Marshall, N., Love, G. D., Grytsenko, V., & Bekker, A. (2022). Assessing marine communities and carbon cycling that sustained shallow-marine ecosystems on Silurian, reef-rimmed carbonate platforms. Organic Geochemistry, None, 104528. doi:10.1016/j.orggeochem.2022.104528

Aqueous alteration processes in Jezero crater, Mars−implications for organic geochemistry

Scheller, E. L., Hollis, J. R., Cardarelli, E. L., Steele, A., Beegle, L. W., Bhartia, R., … Zorzano, M-P. (2022). Aqueous alteration processes in Jezero crater, Mars−implications for organic geochemistry. Science. doi:10.1126/science.abo5204

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