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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October 2009The effect of sulfate concentration on (sub)millimeter-scale sulfide δ34S in hypersaline cyanobacterial mats over the diurnal cycle

Fike, D. A., Finke, N., Zha, J., Blake, G., Hoehler, T. M., & Orphan, V. J. (2009). Geochimica et Cosmochimica Acta, 73(20), 6187–6204. doi:10.1016/j.gca.2009.07.006

TIME EVOLUTION OF VISCOUS CIRCUMSTELLAR DISKS DUE TO PHOTOEVAPORATION BY FAR-ULTRAVIOLET, EXTREME-ULTRAVIOLET, AND X-RAY RADIATION FROM THE CENTRAL STAR

Gorti, U., Dullemond, C. P., & Hollenbach, D. (2009). The Astrophysical Journal, 705(2), 1237–1251. doi:10.1088/0004-637x/705/2/1237

Elemental release rates from dissolving basalt and granite with and without organic ligands

Hausrath, E. M., Neaman, A., & Brantley, S. L. (2009). American Journal of Science, 309(8), 633–660. doi:10.2475/08.2009.01

Ethane ices in the outer Solar System: Spectroscopy and chemistry

Hudson, R. L., Moore, M. H., & Raines, L. L. (2009). Icarus, 203(2), 677–680. doi:10.1016/j.icarus.2009.06.026

Fayalite in the Vigarano CV3 carbonaceous chondrite: Occurrences, formation age and conditions

Jogo, K., Nakamura, T., Noguchi, T., & Zolotov, M. Y. (2009). Earth and Planetary Science Letters, 287(3-4), 320–328. doi:10.1016/j.epsl.2009.08.014

Attachment of l -Glutamate to Rutile (α-TiO 2 ): A Potentiometric, Adsorption, and Surface Complexation Study

Jonsson, C. M., Jonsson, C. L., Sverjensky, D. A., Cleaves, H. J., & Hazen, R. M. (2009). Langmuir, 25(20), 12127–12135. doi:10.1021/la901635t

Characterizing habitable extrasolar planets using spectral fingerprints

Kaltenegger, L., & Selsis, F. (2009). Comptes Rendus Palevol, 8(7), 679–691. doi:10.1016/j.crpv.2009.07.001

Silicon isotopic fractionation of CAI-like vacuum evaporation residues

Knight, K. B., Kita, N. T., Mendybaev, R. A., Richter, F. M., Davis, A. M., & Valley, J. W. (2009). Geochimica et Cosmochimica Acta, 73(20), 6390–6401. doi:10.1016/j.gca.2009.07.008

An early productive ocean unfit for aerobics

Lyons, T. W., & Reinhard, C. T. (2009). Proceedings of the National Academy of Sciences, 106(43), 18045–18046. doi:10.1073/pnas.0910345106

Rapid Culture-Independent Microbial Analysis Aboard the International Space Station (ISS)

Maule, J., Wainwright, N., Steele, A., Monaco, L., Morris, H., Gunter, D., … Damon, M. (2009). Astrobiology, 9(8), 759–775. doi:10.1089/ast.2008.0319

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