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 2025Europa’s Sodium and Potassium Exosphere during Juno’s Flyby

Lovett, E., Schmidt, C., & Lierle, P. (2025). Europa’s Sodium and Potassium Exosphere during Juno’s Flyby. The Planetary Science Journal, 6(7), 178. doi:10.3847/psj/adeb52

Simulating Science Operations for a Joint Rover-helicopter Mission Architecture in a Mars Analog Setting

Stack, K. M., Francis, R., Calef, F. J., Gwizd, S. J., Schroeder, J. F., Voigt, J. R. C., … Hamilton, C. W. (2025). Simulating Science Operations for a Joint Rover-helicopter Mission Architecture in a Mars Analog Setting. The Planetary Science Journal, 6(7), 173. doi:10.3847/psj/ade786

Particle Accretion in Microgravity. I. Particle Sizes and Bulk Densities

Whizin, A. D., Durda, D. D., Tsang, C. C. C., & Love, S. G. (2025). Particle Accretion in Microgravity. I. Particle Sizes and Bulk Densities. The Planetary Science Journal, 6(7), 171. doi:10.3847/psj/ade877

4D-STEM Analysis of Fe-Sulfides from the Early Solar System

Kerrison, N.A., Gainsforth, Z., Schrader, D.S., Zega, T.J. (2025) 4D-STEM Analysis of Fe-Sulfides from the Early Solar System. Microscopy and Microanalysis, 31(Supplement_1). doi: 10.1093/mam/ozaf048.087

A proposed mechanism for the formation of protocell-like structures on Titan

Mayer, C., & Nixon, C. A. (2025). A proposed mechanism for the formation of protocell-like structures on Titan. International Journal of Astrobiology, 24, None. doi:10.1017/s1473550425100037

Crystal Habits as Potential Biosignatures

Perl, S.M., et. al. (2025) Crystal Habits as Potential Biosignatures, 25(7). doi: 10.1177/15311074251360767

Assessing the Morphological Changes of Residual Gadolinium-based Contrast Agents Found in Tissue via Scanning Transmission Electron Microscopy

Saenz-Trevizo, A., Escobar, G.P., Howard, T., Dokladny, K., Brearley, A., Wagner, B. (2025) Assessing the Morphological Changes of Residual Gadolinium-based Contrast Agents Found in Tissue via Scanning Transmission Electron Microscopy, 31(Supplement_1). doi: 10.1093/mam/ozaf048.402

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Shaffer, J.M.C., Sklute, E.C., Samples, R.M., Giddings, L-A., Jarratt, A., Mateos, K., Dyar, M.D., Lee, P.A., Livi, K.J.T., Mikucki, J.A. (2025) Multi-technique characterization of iron reduction by an Antarctic Shewanella: an analog system for putative Martian biosignature identification. doi: 10.1128/aem.02528-24

Structural Biosignatures—A Category of Potential Biosignatures in the Life Detection Knowledge Base

Shkolyar, S. et. al. (2025). Structural Biosignatures—A Category of Potential Biosignatures in the Life Detection Knowledge Base. Astrobiology, 35, 7. doi:10.1089/ast.2024.0105

June 2025Perchlorate brine formation from frost at the Viking 2 landing site

Chevrier, V. F. (2025). Perchlorate brine formation from frost at the Viking 2 landing site. Communications Earth & Environment, 6(1), None. doi:10.1038/s43247-025-02411-0

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