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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September 2021A Metamorphic Origin for Europa's Ocean

Melwani Daswani, M., Vance, S. D., Mayne, M. J., & Glein, C. R. (2021). A Metamorphic Origin for Europa's Ocean. Geophysical Research Letters, 48(18), None. doi:10.1029/2021gl094143

Dynamic interplay of biogeochemical C, S, and Ba cycles in response to Shuram oxygenation event

Cui, H., Kaufman, A. J., Xiao, S., Zhou, C., Zhu, M., Cao, M., … Guan, C. (2021). Dynamic interplay of biogeochemical C, S, and Ba cycles in response to Shuram oxygenation event. Journal of the Geological Society, None, jgs2021–081. doi:10.1144/jgs2021-081

Exploring Tidal Obliquity Variations with SMERCURY-T

Kreyche, S. M., Barnes, J. W., Quarles, B. L., & Chambers, J. E. (2021). Exploring Tidal Obliquity Variations with SMERCURY-T. The Planetary Science Journal, 2(5), 187. doi:10.3847/psj/ac1ce6

A Comprehensive Revisit of Select Galileo/NIMS Observations of Europa

Mishra, I., Lewis, N., Lunine, J., Hand, K. P., Helfenstein, P., Carlson, R. W., & MacDonald, R. J. (2021). A Comprehensive Revisit of Select Galileo/NIMS Observations of Europa. The Planetary Science Journal, 2(5), 183. doi:10.3847/psj/ac1acb

Tracking Short-term Variations in the Haze Distribution of Titan’s Atmosphere with SINFONI VLT

Nichols-Fleming, F., Corlies, P., Hayes, A. G., Ádámkovics, M., Rojo, P., Rodriguez, S., … Soderblom, J. M. (2021). Tracking Short-term Variations in the Haze Distribution of Titan’s Atmosphere with SINFONI VLT. The Planetary Science Journal, 2(5), 180. doi:10.3847/psj/abffd7

Multiplex suppression of four quadruplet codons via tRNA directed evolution

DeBenedictis, E. A., Carver, G. D., Chung, C. Z., Söll, D., & Badran, A. H. (2021). Multiplex suppression of four quadruplet codons via tRNA directed evolution. Nature Communications, 12(1), None. doi:10.1038/s41467-021-25948-y

Astrobiology, the United Nations, and Geopolitics

Linda, B. (2021). Astrobiology, the United Nations, and Geopolitics. Astrobiology, None, 255–269. doi:10.1002/9781119711186.ch12

Nutrient Supply to Planetary Biospheres from Anoxic Weathering of Mafic Oceanic Crust

Syverson, D. D., Reinhard, C. T., Isson, T. T., Holstege, C. H., Katchinoff, J. A. R., Tutolo, B. M., … Planavsky, N. J. (2021). Nutrient Supply to Planetary Biospheres from Anoxic Weathering of Mafic Oceanic Crust. Geophysical Research Letters. doi:10.1029/2021gl094442

A large sub-Neptune transiting the thick-disk M4 V TOI-2406

Wells, R. D., Rackham, B. V., Schanche, N., Petrucci, R., Gómez Maqueo Chew, Y., Demory, B-O., … Winn, J. N. (2021). A large sub-Neptune transiting the thick-disk M4 V TOI-2406. Astronomy & Astrophysics, 653, A97. doi:10.1051/0004-6361/202141277

Common feedstocks of late accretion for the terrestrial planets

Zhu, M-H., Morbidelli, A., Neumann, W., Yin, Q-Z., Day, J. M. D., Rubie, D. C., … Wünnemann, K. (2021). Common feedstocks of late accretion for the terrestrial planets. Nature Astronomy. doi:10.1038/s41550-021-01475-0

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