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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December 2008STIS IMAGING OF THE HR 4796A CIRCUMSTELLAR DEBRIS RING

Schneider, G., Weinberger, A. J., Becklin, E. E., Debes, J. H., & Smith, B. A. (2008). The Astronomical Journal, 137(1), 53–61. doi:10.1088/0004-6256/137/1/53

Simulating Martian regolith in the laboratory

Seiferlin, K., Ehrenfreund, P., Garry, J., Gunderson, K., Hütter, E., Kargl, G., … Maturilli, A. (2008). Planetary and Space Science, 56(15), 2009–2025. doi:10.1016/j.pss.2008.09.017

Light-toned salty soils and coexisting Si-rich species discovered by the Mars Exploration Rover Spirit in Columbia Hills

Wang, A., Bell, J. F., Li, R., Johnson, J. R., Farrand, W. H., Cloutis, E. A., … Arvidson, R. E. (2008). Journal of Geophysical Research, 113(E12), None. doi:10.1029/2008je003126

November 2008A Major Clade of Prokaryotes with Ancient Adaptations to Life on Land

Battistuzzi, F. U., & Hedges, S. B. (2008). Molecular Biology and Evolution, 26(2), 335–343. doi:10.1093/molbev/msn247

Density functional theory predictions of equilibrium isotope fractionation of iron due to redox changes and organic complexation

Domagal-Goldman, S. D., & Kubicki, J. D. (2008). Geochimica et Cosmochimica Acta, 72(21), 5201–5216. doi:10.1016/j.gca.2008.05.066

Accommodating the Effect of Ancient DNA Damage on Inferences of Demographic Histories

Rambaut, A., Ho, S. Y. W., Drummond, A. J., & Shapiro, B. (2008). Molecular Biology and Evolution, 26(2), 245–248. doi:10.1093/molbev/msn256

Photochemical instability of the ancient Martian atmosphere

Zahnle, K., Haberle, R. M., Catling, D. C., & Kasting, J. F. (2008). Journal of Geophysical Research, 113(E11), None. doi:10.1029/2008je003160

October 2008Entry approach into pristine ice-sealed lakes-Lake Vida, East Antarctica, a model ecosystem

Doran, P. T., Fritsen, C. H., Murray, A. E., Kenig, F., McKay, C. P., & Kyne, J. D. (2008). Entry approach into pristine ice-sealed lakes-Lake Vida, East Antarctica, a model ecosystem. Limnology and Oceanography: Methods, 6(10), 542–547. doi:10.4319/lom.2008.6.542

Molecular phylogeny of choanoflagellates, the sister group to Metazoa

Carr, M., Leadbeater, B. S. C., Hassan, R., Nelson, M., & Baldauf, S. L. (2008). Proceedings of the National Academy of Sciences, 105(43), 16641–16646. doi:10.1073/pnas.0801667105

Measurement of the Spin‐Orbit Angle of Exoplanet HAT‐P‐1b

Johnson, J. A., Winn, J. N., Narita, N., Enya, K., Williams, P. K. G., Marcy, G. W., … Sato, B. e. (2008). The Astrophysical Journal, 686(1), 649–657. doi:10.1086/591078

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