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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February 2015UV-light microscope: improvements in optical imaging for a secondary ion mass spectrometer

Kita, N. T., Sobol, P. E., Kern, J. R., Lord, N. E., & Valley, J. W. (2015). J. Anal. At. Spectrom., 30(5), 1207–1213. doi:10.1039/c4ja00349g

Quantitative evolutionary dynamics using high-resolution lineage tracking

Levy, S. F., Blundell, J. R., Venkataram, S., Petrov, D. A., Fisher, D. S., & Sherlock, G. (2015). Nature, 519(7542), 181–186. doi:10.1038/nature14279

Marine redox conditions in the middle Proterozoic ocean and isotopic constraints on authigenic carbonate formation: Insights from the Chuanlinggou Formation, Yanshan Basin, North China

Li, C., Planavsky, N. J., Love, G. D., Reinhard, C. T., Hardisty, D., Feng, L., … Bates, S. M. (2015). Geochimica et Cosmochimica Acta, 150(None), 90–105. doi:10.1016/j.gca.2014.12.005

Enriching distinctive microbial communities from marine sediments via an electrochemical-sulfide-oxidizing process on carbon electrodes

Li, S-L., & Nealson, K. H. (2015). Frontiers in Microbiology, 6(None), None. doi:10.3389/fmicb.2015.00111

Detection of Trace Organics in Mars Analog Samples Containing Perchlorate by Laser Desorption/Ionization Mass Spectrometry

Li, X., Danell, R. M., Brinckerhoff, W. B., Pinnick, V. T., Van Amerom, F., Arevalo, R. D., … Getty, S. A. (2015). Astrobiology, 15(2), 104–110. doi:10.1089/ast.2014.1203

Extreme Water Loss and Abiotic O 2 Buildup on Planets Throughout the Habitable Zones of M Dwarfs

Luger, R., & Barnes, R. (2015). Astrobiology, 15(2), 119–143. doi:10.1089/ast.2014.1231

KEPLER FLARES III: STELLAR ACTIVITY ON GJ 1245A AND B

Lurie, J. C., Davenport, J. R. A., Hawley, S. L., Wilkinson, T. D., Wisniewski, J. P., Kowalski, A. F., & Hebb, L. (2015). The Astrophysical Journal, 800(2), 95. doi:10.1088/0004-637x/800/2/95

There and back again: consequences of biofilm specialization under selection for dispersal

Oâ€™Rourke, D., FitzGerald, C. E., Traverse, C. C., & Cooper, V. S. (2015). Frontiers in Genetics, 6(None), None. doi:10.3389/fgene.2015.00018

Sulfur-cycling fossil bacteria from the 1.8-Ga Duck Creek Formation provide promising evidence of evolution's null hypothesis

Schopf, J. W., Kudryavtsev, A. B., Walter, M. R., Van Kranendonk, M. J., Williford, K. H., Kozdon, R., … Valley, J. W. (2015). Proc Natl Acad Sci USA, 112(7), 2087–2092. doi:10.1073/pnas.1419241112

Stable isotope labeling confirms mixotrophic nature of streamer biofilm communities at alkaline hot springs

Schubotz, F., Hays, L. E., Meyer-Dombard, D. A. R., Gillespie, A., Shock, E. L., & Summons, R. E. (2015). Frontiers in Microbiology, 6(None), None. doi:10.3389/fmicb.2015.00042

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