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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August 2020Abiotic redox reactions in hydrothermal mixing zones: Decreased energy availability for the subsurface biosphere

McDermott, J. M., Sylva, S. P., Ono, S., German, C. R., & Seewald, J. S. (2020). Abiotic redox reactions in hydrothermal mixing zones: Decreased energy availability for the subsurface biosphere. Proceedings of the National Academy of Sciences, None, 202003108. doi:10.1073/pnas.2003108117

July 2020Stratification Dynamics of Titan’s Lakes via Methane Evaporation

Steckloff, J. K., Soderblom, J. M., Farnsworth, K. K., Chevrier, V. F., Hanley, J., Soto, A., … Engle, A. (2020). Stratification Dynamics of Titan’s Lakes via Methane Evaporation. The Planetary Science Journal, 1(2), 26. doi:10.3847/psj/ab974e

June 2020Deep Ocean Passive Acoustic Technologies for Exploration of Ocean and Surface Sea Worlds in the Outer Solar System

Dziak, R., , ., Banfield, D., Lorenz, R., Matsumoto, H., Klinck, H., … Kahn, B. (2020). Deep Ocean Passive Acoustic Technologies for Exploration of Ocean and Surface Sea Worlds in the Outer Solar System. Oceanography, 33(2), None. doi:10.5670/oceanog.2020.221

January 2018Vital Signs: Seismology of Icy Ocean Worlds

Vance, S. D., Kedar, S., Panning, M. P., Stähler, S. C., Bills, B. G., Lorenz, R. D., … Rhoden, A. R. (2018). Vital Signs: Seismology of Icy Ocean Worlds. Astrobiology, 18(1), 37–53. doi:10.1089/ast.2016.1612

June 2017The influence of meridional ice transport on Europa's ocean stratification and heat content

Zhu, P., Manucharyan, G. E., Thompson, A. F., Goodman, J. C., & Vance, S. D. (2017). The influence of meridional ice transport on Europa's ocean stratification and heat content. Geophysical Research Letters, 44(12), 5969–5977. doi:10.1002/2017gl072996

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