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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July 2009 Activation of HydA ΔEFG Requires a Preformed [4Fe-4S] Cluster

Mulder, D. W., Ortillo, D. O., Gardenghi, D. J., Naumov, A. V., Ruebush, S. S., Szilagyi, R. K., … Huynh, B. (2009). Biochemistry, 48(26), 6240–6248. doi:10.1021/bi9000563

Patterns of 15 N assimilation and growth of methanotrophic ANME-2 archaea and sulfate-reducing bacteria within structured syntrophic consortia revealed by FISH-SIMS

Orphan, V. J., Turk, K. A., Green, A. M., & House, C. H. (2009). Environmental Microbiology, 11(7), 1777–1791. doi:10.1111/j.1462-2920.2009.01903.x

INDEPENDENT CONFIRMATION AND REFINED PARAMETERS OF THE HOT JUPITER XO-5b

Pál, A., Bakos, G. Á., Fernandez, J., Sipőcz, B., Torres, G., Latham, D. W., … Kovács, G. (2009). The Astrophysical Journal, 700(1), 783–790. doi:10.1088/0004-637x/700/1/783

Habitability on planetary surfaces: interdisciplinary preparation phase for future Mars missions

Peeters, Z., Quinn, R., Martins, Z., Sephton, M. A., Becker, L., Van Loosdrecht, M. C. M., … Brucato, J. (2009). International Journal of Astrobiology, 8(04), 301. doi:10.1017/s1473550409990140

Isotopic fractionation of the major elements of molten basalt by chemical and thermal diffusion

Richter, F. M., Watson, E. B., Mendybaev, R., Dauphas, N., Georg, B., Watkins, J., & Valley, J. (2009). Geochimica et Cosmochimica Acta, 73(14), 4250–4263. doi:10.1016/j.gca.2009.04.011

Buffering of sublimation loss of subsurface ice by percolating snowmelt: a theoretical analysis

Schorghofer, N. (2009). Permafrost and Periglacial Processes, 20(3), 309–313. doi:10.1002/ppp.646

Entropy and structure of oxidized and reduced iron-bearing silicate glasses

Sipowska, J. T., Atake, T., Mysen, B. O., & Richet, P. (2009). Geochimica et Cosmochimica Acta, 73(13), 3905–3913. doi:10.1016/j.gca.2009.03.042

Phylogenetic-Signal Dissection of Nuclear Housekeeping Genes Supports the Paraphyly of Sponges and the Monophyly of Eumetazoa

Sperling, E. A., Peterson, K. J., & Pisani, D. (2009). Molecular Biology and Evolution, 26(10), 2261–2274. doi:10.1093/molbev/msp148

Large iron isotope fractionation at the oxic–anoxic boundary in Lake Nyos

Teutsch, N., Schmid, M., Müller, B., Halliday, A. N., Bürgmann, H., & Wehrli, B. (2009). Earth and Planetary Science Letters, 285(1-2), 52–60. doi:10.1016/j.epsl.2009.05.044

Liquid water on Enceladus from observations of ammonia and 40Ar in the plume

Waite Jr, J. H., Lewis, W. S., Magee, B. A., Lunine, J. I., McKinnon, W. B., Glein, C. R., … Mousis, O. (2009). Nature, 460(7254), 487–490. doi:10.1038/nature08153

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