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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May 2008Water Activity and the Challenge for Life on Early Mars

Tosca, N. J., Knoll, A. H., & McLennan, S. M. (2008). Science, 320(5880), 1204–1207. doi:10.1126/science.1155432

Reduction of N2 by Fe2+ via Homogeneous and Heterogeneous Reactions Part 2: The Role of Metal Binding in Activating N2 for Reduction; a Requirement for Both Pre-biotic and Biological Mechanisms

Wander, M. C. F., Kubicki, J. D., & Schoonen, M. A. A. (2008). Orig Life Evol Biosph, 38(3), 195–209. doi:10.1007/s11084-008-9133-6

April 2008Supra-subduction and abyssal mantle peridotites of the Coast Range ophiolite, California

Choi, S. H., Shervais, J. W., & Mukasa, S. B. (2008). Supra-subduction and abyssal mantle peridotites of the Coast Range ophiolite, California. Contributions to Mineralogy and Petrology, 156(5), 551–576. doi:10.1007/s00410-008-0300-6

Reconstructing Evolutionary Graphs: 3D Parsimony

Lake, J. A. (2008). Molecular Biology and Evolution, 25(8), 1677–1682. doi:10.1093/molbev/msn117

The origin and evolution of the ribosome

Smith, T. F., Lee, J. C., Gutell, R. R., & Hartman, H. (2008). Biol Direct, 3(1), 16. doi:10.1186/1745-6150-3-16

March 2008Observations of Disks around Brown Dwarfs in the TW Hydra Association with theSpitzerInfrared Spectrograph

Morrow, A. L., Luhman, K. L., Espaillat, C., d'Alessio, P., Adame, L., Calvet, N., … Bohac, C. J. (2008). Observations of Disks around Brown Dwarfs in the TW Hydra Association with theSpitzerInfrared Spectrograph. The Astrophysical Journal, 676(2), L143–L146. doi:10.1086/587462

February 2008Iron isotope variations in Holocene sediments of the Gotland Deep, Baltic Sea

Fehr, M. A., Andersson, P. S., Hålenius, U., & Mörth, C-M. (2008). Geochimica et Cosmochimica Acta, 72(3), 807–826. doi:10.1016/j.gca.2007.11.033

Detection of cometary amines in samples returned by Stardust

Glavin, D. P., Dworkin, J. P., & Sandford, S. A. (2008). Meteoritics & Planetary Science, 43(1-2), 399–413. doi:10.1111/j.1945-5100.2008.tb00629.x

Reduction of N2 by Fe2+ via Homogeneous and Heterogeneous Reactions

Wander, M. C. F., & Schoonen, M. A. A. (2008). Orig Life Evol Biosph, 38(2), 127–137. doi:10.1007/s11084-008-9122-9

January 2008Iron isotopes constrain biologic and abiologic processes in banded iron formation genesis

Johnson, C. M., Beard, B. L., Klein, C., Beukes, N. J., & Roden, E. E. (2008). Geochimica et Cosmochimica Acta, 72(1), 151–169. doi:10.1016/j.gca.2007.10.013

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