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 2023Hot 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

Laboratory Studies of Brine Growth Kinetics Relevant to Deliquescence on Mars

Gough, R. V., Nuding, D. L., Martínez, G. M., Rivera-Valentín, E. G., Primm, K. M., & Tolbert, M. A. (2023). Laboratory Studies of Brine Growth Kinetics Relevant to Deliquescence on Mars. The Planetary Science Journal, 4(3), 46. doi:10.3847/psj/acbd98

A Bayesian Analysis of Technological Intelligence in Land and Oceans

Lingam, M., Balbi, A., & Mahajan, S. M. (2023). A Bayesian Analysis of Technological Intelligence in Land and Oceans. The Astrophysical Journal, 945(1), 23. doi:10.3847/1538-4357/acb6fa

Systematic paleontology of macroalgal fossils from the Tonian Mackenzie Mountains Supergroup

Maloney, K. M., Maverick, D. P., Schiffbauer, J. D., Halverson, G. P., Xiao, S., & Laflamme, M. (2023). Systematic paleontology of macroalgal fossils from the Tonian Mackenzie Mountains Supergroup. Journal of Paleontology, None, 1–17. doi:10.1017/jpa.2023.4

Superstoichiometric Alloying of H and Close‐Packed Fe‐Ni Metal Under High Pressures: Implications for Hydrogen Storage in Planetary Core

Piet, H., Chizmeshya, A., Chen, B., Chariton, S., Greenberg, E., Prakapenka, V., … Shim, S. (2023). Superstoichiometric Alloying of H and Close‐Packed Fe‐Ni Metal Under High Pressures: Implications for Hydrogen Storage in Planetary Core. Geophysical Research Letters, 50(5), None. doi:10.1029/2022gl101155

Constellations of co-orbital planets: horseshoe dynamics, long-term stability, transit timing variations, and potential as SETI beacons

Raymond, S. N., Veras, D., Clement, M. S., Izidoro, A., Kipping, D., & Meadows, V. (2023). Constellations of co-orbital planets: horseshoe dynamics, long-term stability, transit timing variations, and potential as SETI beacons. Monthly Notices of the Royal Astronomical Society, 521(2), 2002–2011. doi:10.1093/mnras/stad643

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