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 2015Alkali influence on the water speciation and the environment of protons in silicate glasses revealed by 1H MAS NMR spectroscopy

Le Losq, C., Cody, G. D., & Mysen, B. O. (2015). American Mineralogist, 100(2-3), 466–473. doi:10.2138/am-2015-5004

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

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

Comparative microbial diversity and redox environments of black shale and stromatolite facies in the Mesoproterozoic Xiamaling Formation

Luo, G., Hallmann, C., Xie, S., Ruan, X., & Summons, R. E. (2015). Geochimica et Cosmochimica Acta, 151(None), 150–167. doi:10.1016/j.gca.2014.12.022

Field effect transistors based on semiconductive microbially synthesized chalcogenide nanofibers

McFarlane, I. R., Lazzari-Dean, J. R., & El-Naggar, M. Y. (2015). Acta Biomaterialia, 13(None), 364–373. doi:10.1016/j.actbio.2014.11.005

Core cracking and hydrothermal circulation can profoundly affect Ceres' geophysical evolution

Neveu, M., Desch, S. J., & Castillo-Rogez, J. C. (2015). Journal of Geophysical Research: Planets, 120(2), 123–154. doi:10.1002/2014je004714

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

Taphonomy and morphology of the Ediacara form genus Aspidella

Tarhan, L. G., Droser, M. L., Gehling, J. G., & Dzaugis, M. P. (2015). Precambrian Research, 257(None), 124–136. doi:10.1016/j.precamres.2014.11.026

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