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 2017SEARCHING FOR THE GREAT OXIDATION EVENT IN NORTH AMERICA: A REAPPRAISAL OF THE "MIF–MDF TRANSITION" IN THE HURONIAN SUPERGROUP BY SIMS SULFUR FOUR-ISOTOPE ANALYSIS

Cui, H., , ., Kitajima, K., Spicuzza, M. J., Fournelle, J. H., Ishida, A., … Valley, J. W. (2017). SEARCHING FOR THE GREAT OXIDATION EVENT IN NORTH AMERICA: A REAPPRAISAL OF THE "MIF–MDF TRANSITION" IN THE HURONIAN SUPERGROUP BY SIMS SULFUR FOUR-ISOTOPE ANALYSIS. None. doi:10.1130/abs/2017am-300054

Differential metamorphic effects on nitrogen isotopes in kerogen extracts and bulk rocks

Stüeken, E. E., Zaloumis, J., Meixnerová, J., & Buick, R. (2017). Differential metamorphic effects on nitrogen isotopes in kerogen extracts and bulk rocks. Geochimica et Cosmochimica Acta, 217, 80–94. doi:10.1016/j.gca.2017.08.019

Atmospheric Beacons of Life from Exoplanets Around G and K Stars

Airapetian, V. S., Jackman, C. H., Mlynczak, M., Danchi, W., & Hunt, L. (2017). Atmospheric Beacons of Life from Exoplanets Around G and K Stars. Scientific Reports, 7(1), None. doi:10.1038/s41598-017-14192-4

Functional horizontal gene transfer from bacteria to eukaryotes

Husnik, F., & McCutcheon, J. P. (2017). Functional horizontal gene transfer from bacteria to eukaryotes. Nature Reviews Microbiology, 16(2), 67–79. doi:10.1038/nrmicro.2017.137

October 2017Exclusion of Stellar Companions to Exoplanet Host Stars

Wittrock, J. M., Kane, S. R., Horch, E. P., Howell, S. B., Ciardi, D. R., & Everett, M. E. (2017). Exclusion of Stellar Companions to Exoplanet Host Stars. The Astronomical Journal, 154(5), 184. doi:10.3847/1538-3881/aa8d69

Atmospheric Pressure Drift Tube Ion Mobility–Orbitrap Mass Spectrometry: Initial Performance Characterization

Keelor, J. D., Zambrzycki, S., Li, A., Clowers, B. H., & Fernández, F. M. (2017). Atmospheric Pressure Drift Tube Ion Mobility–Orbitrap Mass Spectrometry: Initial Performance Characterization. Analytical Chemistry, 89(21), 11301–11309. doi:10.1021/acs.analchem.7b01866

Origins of Life: Open Questions and Debates

Brack, A. (2017). Origins of Life: Open Questions and Debates. Oxford Research Encyclopedia of Planetary Science. doi:10.1093/acrefore/9780190647926.013.6

Photochemistry of Coronene in Cosmic Water Ice Analogs at Different Concentrations

De Barros, A. L. F., Mattioda, A. L., Ricca, A., Cruz-Diaz, G. A., & Allamandola, L. J. (2017). Photochemistry of Coronene in Cosmic Water Ice Analogs at Different Concentrations. The Astrophysical Journal, 848(2), 112. doi:10.3847/1538-4357/aa8c71

High-resolution astrochronological record for the Paleocene-Oligocene (66–23 Ma) from the rapidly subsiding Bohai Bay Basin, northeastern China

Liu, Z., Huang, C., Algeo, T. J., Liu, H., Hao, Y., Du, X., … Peng, L. (2017). High-resolution astrochronological record for the Paleocene-Oligocene (66–23 Ma) from the rapidly subsiding Bohai Bay Basin, northeastern China. Palaeogeography, Palaeoclimatology, Palaeoecology. doi:10.1016/j.palaeo.2017.10.030

Nascent life cycles and the emergence of higher-level individuality

Ratcliff, W. C., Herron, M., Conlin, P. L., & Libby, E. (2017). Nascent life cycles and the emergence of higher-level individuality. Philosophical Transactions of the Royal Society B: Biological Sciences, 372(1735), 20160420. doi:10.1098/rstb.2016.0420

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