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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March 2015Tree of Life Reveals Clock-Like Speciation and Diversification

Hedges, S. B., Marin, J., Suleski, M., Paymer, M., & Kumar, S. (2015). Tree of Life Reveals Clock-Like Speciation and Diversification. Molecular Biology and Evolution, 32(4), 835–845. doi:10.1093/molbev/msv037

Origin of Metazoan Developmental Toolkits and Their Expression in the Fossil Record

Tweedt, S. M., & Erwin, D. H. (2015). Origin of Metazoan Developmental Toolkits and Their Expression in the Fossil Record. Advances in Marine Genomics, None, 47–77. doi:10.1007/978-94-017-9642-2_3

Nonequilibrium clumped isotope signals in microbial methane

Wang, D. T., Gruen, D. S., Lollar, B. S., Hinrichs, K-U., Stewart, L. C., Holden, J. F., … Ono, S. (2015). Nonequilibrium clumped isotope signals in microbial methane. Science, 348(6233), 428–431. doi:10.1126/science.aaa4326

Collaborative interdisciplinary astrobiology research: a bibliometric study of the NASA Astrobiology Institute

Taşkın, Z., & Aydinoglu, A. U. (2015). Scientometrics, 103(3), 1003–1022. doi:10.1007/s11192-015-1576-8

The structure and chemical layering of Proterozoic stromatolites in the Mojave Desert

Douglas, S., Perry, M. E., Abbey, W. J., Tanaka, Z., Chen, B., & McKay, C. P. (2015). The structure and chemical layering of Proterozoic stromatolites in the Mojave Desert. International Journal of Astrobiology, 14(3), 517–526. doi:10.1017/s1473550415000026

Extraordinarily Adaptive Properties of the Genetically Encoded Amino Acids

Ilardo, M., Meringer, M., Freeland, S., Rasulev, B., & James Cleaves II, H. (2015). Extraordinarily Adaptive Properties of the Genetically Encoded Amino Acids. Scientific Reports, 5(1), None. doi:10.1038/srep09414

Phosphorus: a Case for Mineral-Organic Reactions in Prebiotic Chemistry

Pasek, M., Herschy, B., & Kee, T. P. (2015). Phosphorus: a Case for Mineral-Organic Reactions in Prebiotic Chemistry. Origins of Life and Evolution of Biospheres, 45(1-2), 207–218. doi:10.1007/s11084-015-9420-y

Archaeal type IV pili and their involvement in biofilm formation

Pohlschroder, M., & Esquivel, R. N. (2015). Frontiers in Microbiology, 06(None), None. doi:10.3389/fmicb.2015.00190

Mars Reconnaissance Orbiter and Opportunity observations of the Burns formation: Crater hopping at Meridiani Planum

Arvidson, R. E., Bell, J. F., Catalano, J. G., Clark, B. C., Fox, V. K., Gellert, R., … Grotzinger, J. P. (2015). Journal of Geophysical Research: Planets, 120(3), 429–451. doi:10.1002/2014je004686

Evolution of Molybdenum Nitrogenase during the Transition from Anaerobic to Aerobic Metabolism

Boyd, E. S., Costas, A. M. G., Hamilton, T. L., Mus, F., & Peters, J. W. (2015). J. Bacteriol., 197(9), 1690–1699. doi:10.1128/jb.02611-14

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