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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May 2014Magnesium isotope fractionation between brucite [Mg(OH)2] and Mg aqueous species: Implications for silicate weathering and biogeochemical processes

Li, W., Beard, B. L., Li, C., & Johnson, C. M. (2014). Earth and Planetary Science Letters, 394(None), 82–93. doi:10.1016/j.epsl.2014.03.022

ICE CHEMISTRY ON OUTER SOLAR SYSTEM BODIES: CARBOXYLIC ACIDS, NITRILES, AND UREA DETECTED IN REFRACTORY RESIDUES PRODUCED FROM THE UV PHOTOLYSIS OF N 2 :CH 4 :CO-CONTAINING ICES

Materese, C. K., Cruikshank, D. P., Sandford, S. A., Imanaka, H., Nuevo, M., & White, D. W. (2014). The Astrophysical Journal, 788(2), 111. doi:10.1088/0004-637x/788/2/111

Component geochronology in the polyphase ca. 3920Ma Acasta Gneiss

Mojzsis, S. J., Cates, N. L., Caro, G., Trail, D., Abramov, O., Guitreau, M., … Blichert-Toft, J. (2014). Geochimica et Cosmochimica Acta, 133(None), 68–96. doi:10.1016/j.gca.2014.02.019

CO Self-Shielding as a Mechanism to Make 16O-Enriched Solids in the Solar Nebula

Nuth, I. J., Johnson, N., & Hill, H. (2014). Challenges, 5(1), 152–158. doi:10.3390/challe5010152

Oxygen, iron, and sulfur geochemical cycles on early Earth: Paradigms and contradictions

Ohmoto, H., Watanabe, Y., Lasaga, A. C., Naraoka, H., Johnson, I., Brainard, J., & Chorney, A. (2014). Earth's Early Atmosphere and Surface Environment, None(None), 55–95. doi:10.1130/2014.2504(09)

The lens feature on the inner saturnian satellites

Paranicas, C., Roussos, E., Decker, R. B., Johnson, R. E., Hendrix, A. R., Schenk, P., … Cassidy, T. A. (2014). Icarus, 234(None), 155–161. doi:10.1016/j.icarus.2014.02.026

DETECTION OF OCEAN GLINT AND OZONE ABSORPTION USING LCROSS EARTH OBSERVATIONS

Robinson, T. D., Ennico, K., Meadows, V. S., Sparks, W., Bussey, D. B. J., Schwieterman, E. W., & Breiner, J. (2014). The Astrophysical Journal, 787(2), 171. doi:10.1088/0004-637x/787/2/171

Titan solar occultation observations reveal transit spectra of a hazy world

Robinson, T. D., Maltagliati, L., Marley, M. S., & Fortney, J. J. (2014). Proceedings of the National Academy of Sciences, 111(25), 9042–9047. doi:10.1073/pnas.1403473111

Redox heterogeneity of subsurface waters in the Mesoproterozoic ocean

Sperling, E. A., Rooney, A. D., Hays, L., Sergeev, V. N., Vorob'eva, N. G., Sergeeva, N. D., … Selby, D. (2014). Geobiology, 12(5), 373–386. doi:10.1111/gbi.12091

Physiological and genomic features of highly alkaliphilic hydrogen-utilizing Betaproteobacteria from a continental serpentinizing site

Suzuki, S., Kuenen, J. G., Schipper, K., Van Der Velde, S., Ishii, S. i., Wu, A., … Sorokin, D. Y. (2014). Nat Comms, 5(None), None. doi:10.1038/ncomms4900

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