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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November 2017Biomass recycling and Earth’s early phosphorus cycle

Kipp, M. A., & Stüeken, E. E. (2017). Biomass recycling and Earth’s early phosphorus cycle. Science Advances, 3(11), eaao4795. doi:10.1126/sciadv.aao4795

Kinematics of the Interstellar Vagabond 1I/‘Oumuamua (A/2017 U1)

Mamajek, E. (2017). Kinematics of the Interstellar Vagabond 1I/‘Oumuamua (A/2017 U1). Research Notes of the AAS, 1(1), 21. doi:10.3847/2515-5172/aa9bdc

Quantitative model evaluation of organic carbon oxidation hypotheses for the Ediacaran Shuram carbon isotopic excursion

Shi, W., Li, C., & Algeo, T. J. (2017). Quantitative model evaluation of organic carbon oxidation hypotheses for the Ediacaran Shuram carbon isotopic excursion. Science China Earth Sciences. doi:10.1007/s11430-017-9137-1

Cellular packing, mechanical stress and the evolution of multicellularity

Jacobeen, S., Pentz, J. T., Graba, E. C., Brandys, C. G., Ratcliff, W. C., & Yunker, P. J. (2017). Cellular packing, mechanical stress and the evolution of multicellularity. Nature Physics. doi:10.1038/s41567-017-0002-y

Analytic Scattering and Refraction Models for Exoplanet Transit Spectra

Robinson, T. D., Fortney, J. J., & Hubbard, W. B. (2017). Analytic Scattering and Refraction Models for Exoplanet Transit Spectra. The Astrophysical Journal, 850(2), 128. doi:10.3847/1538-4357/aa951e

Redox-independent chromium isotope fractionation induced by ligand-promoted dissolution

Saad, E. M., Wang, X., Planavsky, N. J., Reinhard, C. T., & Tang, Y. (2017). Redox-independent chromium isotope fractionation induced by ligand-promoted dissolution. Nature Communications, 8(1), None. doi:10.1038/s41467-017-01694-y

Early diverging lineages within Cryptomycota and Chytridiomycota dominate the fungal communities in ice-covered lakes of the McMurdo Dry Valleys, Antarctica

Rojas-Jimenez, K., Wurzbacher, C., Bourne, E. C., Chiuchiolo, A., Priscu, J. C., & Grossart, H-P. (2017). Early diverging lineages within Cryptomycota and Chytridiomycota dominate the fungal communities in ice-covered lakes of the McMurdo Dry Valleys, Antarctica. Scientific Reports, 7(1), None. doi:10.1038/s41598-017-15598-w

Prokaryotic diversity and biogeochemical characteristics of benthic microbial ecosystems at La Brava, a hypersaline lake at Salar de Atacama, Chile

Farias, M. E., Rasuk, M. C., Gallagher, K. L., Contreras, M., Kurth, D., Fernandez, A. B., … Visscher, P. T. (2017). Prokaryotic diversity and biogeochemical characteristics of benthic microbial ecosystems at La Brava, a hypersaline lake at Salar de Atacama, Chile. PLOS ONE, 12(11), e0186867. doi:10.1371/journal.pone.0186867

Obliquity and Eccentricity Constraints for Terrestrial Exoplanets

Kane, S. R., & Torres, S. M. (2017). Obliquity and Eccentricity Constraints for Terrestrial Exoplanets. The Astronomical Journal, 154(5), 204. doi:10.3847/1538-3881/aa8fce

An Antarctic Extreme Halophile and Its Polyextremophilic Enzyme: Effects of Perchlorate Salts

Laye, V. J., & DasSarma, S. (2017). An Antarctic Extreme Halophile and Its Polyextremophilic Enzyme: Effects of Perchlorate Salts. Astrobiology. doi:10.1089/ast.2017.1766

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