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 2014Earth’s carbon cycle: A mathematical perspective

Rothman, D. H. (2014). Bulletin of the American Mathematical Society, 52(1), 47–64. doi:10.1090/s0273-0979-2014-01471-5

Development of in situ sulfur four-isotope analysis with multiple Faraday cup detectors by SIMS and application to pyrite grains in a Paleoproterozoic glaciogenic sandstone

Ushikubo, T., Williford, K. H., Farquhar, J., Johnston, D. T., Van Kranendonk, M. J., & Valley, J. W. (2014). Chemical Geology, 383(None), 86–99. doi:10.1016/j.chemgeo.2014.06.006

August 2014ABIOTIC OZONE AND OXYGEN IN ATMOSPHERES SIMILAR TO PREBIOTIC EARTH

Domagal-Goldman, S. D., Segura, A., Claire, M. W., Robinson, T. D., & Meadows, V. S. (2014). The Astrophysical Journal, 792(2), 90. doi:10.1088/0004-637x/792/2/90

Microbial shaping of sedimentary wrinkle structures

Mariotti, G., Pruss, S. B., Perron, J. T., & Bosak, T. (2014). Nature Geosci, 7(10), 736–740. doi:10.1038/ngeo2229

Thresher: an improved algorithm for peak height thresholding of microbial community profiles

Starke, V., & Steele, A. (2014). Bioinformatics, 30(22), 3257–3263. doi:10.1093/bioinformatics/btu528

Spatially resolved measurements of H 2 O, HCl, CO, OCS, SO 2 , cloud opacity, and acid concentration in the Venus near-infrared spectral windows

Arney, G., Meadows, V., Crisp, D., Schmidt, S. J., Bailey, J., & Robinson, T. (2014). Journal of Geophysical Research: Planets, 119(8), 1860–1891. doi:10.1002/2014je004662

FORMATION, TIDAL EVOLUTION, AND HABITABILITY OF THE KEPLER-186 SYSTEM

Bolmont, E., Raymond, S. N., Von Paris, P., Selsis, F., Hersant, F., Quintana, E. V., & Barclay, T. (2014). The Astrophysical Journal, 793(1), 3. doi:10.1088/0004-637x/793/1/3

Chemolithotrophic Primary Production in a Subglacial Ecosystem

Boyd, E. S., Hamilton, T. L., Havig, J. R., Skidmore, M. L., & Shock, E. L. (2014). Applied and Environmental Microbiology, 80(19), 6146–6153. doi:10.1128/aem.01956-14

Experimental determination of the kinetics of formation of the benzene-ethane co-crystal and implications for Titan

Cable, M. L., Vu, T. H., Hodyss, R., Choukroun, M., Malaska, M. J., & Beauchamp, P. (2014). Geophysical Research Letters, 41(15), 5396–5401. doi:10.1002/2014gl060531

Where Do We Go from Here? Astrobiology Editorial Board Opinions

Cady, L. P., Brack, A., Bueno Prieto, J. E., Cockell, C., Horneck, G., Kasting, J. F., … Lineweaver, C. H. (2014). Astrobiology, 14(8), 629–644. doi:10.1089/ast.2014.1405

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