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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March 2023Nitrate limitation in early Neoproterozoic oceans delayed the ecological rise of eukaryotes

Kang, J., Gill, B., Reid, R., Zhang, F., & Xiao, S. (2023). Nitrate limitation in early Neoproterozoic oceans delayed the ecological rise of eukaryotes. Science Advances, 9(12), None. doi:10.1126/sciadv.ade9647

Protracted Timescales for Nebular Processing of First-formed Solids in the Solar System

Mane, P., Bose, M., Wadhwa, M., & Defouilloy, C. (2023). Protracted Timescales for Nebular Processing of First-formed Solids in the Solar System. The Astrophysical Journal, 946(1), 37. doi:10.3847/1538-4357/acb156

Short-lived radioisotope enrichment in star-forming regions from stellar winds and supernovae

Parker, R. J., Lichtenberg, T., Patel, M., Polius, C. K. M., & Ridsdill-Smith, M. (2023). Short-lived radioisotope enrichment in star-forming regions from stellar winds and supernovae. Monthly Notices of the Royal Astronomical Society. doi:10.1093/mnras/stad871

Microbial Protocols for Spacecraft: 3. Spore Monolayer Preparation Methods for Ultraviolet Irradiation Exposures

Schuerger, A. C., & Headrick, E. L. (2023). Microbial Protocols for Spacecraft: 3. Spore Monolayer Preparation Methods for Ultraviolet Irradiation Exposures. Astrobiology. doi:10.1089/ast.2022.0072

Hyperactive nanobacteria with host-dependent traits pervade Omnitrophota

Seymour, C. O., Palmer, M., Becraft, E. D., Stepanauskas, R., Friel, A. D., Schulz, F., … Hedlund, B. P. (2023). Hyperactive nanobacteria with host-dependent traits pervade Omnitrophota. Nature Microbiology. doi:10.1038/s41564-022-01319-1

Hot Vents Beneath an Icy Ocean: The Aurora Vent Field, Gakkel Ridge, Revealed

Ramirez-Llodra, E., , ., Argentino, C., Baker, M., Boetius, A., Costa, C., … Buenz, S. (2023). Hot Vents Beneath an Icy Ocean: The Aurora Vent Field, Gakkel Ridge, Revealed. Oceanography, 36(1), None. doi:10.5670/oceanog.2023.103

Orbit-to-ground framework to decode and predict biosignature patterns in terrestrial analogues

Warren-Rhodes, K., Cabrol, N. A., Phillips, M., Tebes-Cayo, C., Kalaitzis, F., Ayma, D., … , . (2023). Orbit-to-ground framework to decode and predict biosignature patterns in terrestrial analogues. Nature Astronomy, 7(4), 406–422. doi:10.1038/s41550-022-01882-x

The Role of Sulfate in Cation Exchange Reactions: Applications to Clay–Brine Interactions on Mars

Geyer, C., Elwood Madden, A. S., Rodriguez, A., Bishop, J. L., Mason, D., & Madden, M. E. (2023). The Role of Sulfate in Cation Exchange Reactions: Applications to Clay–Brine Interactions on Mars. The Planetary Science Journal, 4(3), 48. doi:10.3847/psj/acba97

Degassing of early-formed planetesimals restricted water delivery to Earth

Newcombe, M. E., Nielsen, S. G., Peterson, L. D., Wang, J., Alexander, C. M. O. D., Sarafian, A. R., … Irving, A. J. (2023). Degassing of early-formed planetesimals restricted water delivery to Earth. Nature, 615(7954), 854–857. doi:10.1038/s41586-023-05721-5

Nitrogen and carbon fractionation in planetary magma oceans and origin of the superchondritic C/N ratio in the bulk silicate Earth

Li, Y., Wiedenbeck, M., Monteleone, B., Dasgupta, R., Costin, G., Gao, Z., & Lu, W. (2023). Nitrogen and carbon fractionation in planetary magma oceans and origin of the superchondritic C/N ratio in the bulk silicate Earth. Earth and Planetary Science Letters, 605, 118032. doi:10.1016/j.epsl.2023.118032

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