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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June 2011Large Sulfur Isotope Fractionation Does Not Require Disproportionation

Sim, M. S., Bosak, T., & Ono, S. (2011). Science, 333(6038), 74–77. doi:10.1126/science.1205103

A low mass for Mars from Jupiter’s early gas-driven migration

Walsh, K. J., Morbidelli, A., Raymond, S. N., O'Brien, D. P., & Mandell, A. M. (2011). Nature, 475(7355), 206–209. doi:10.1038/nature10201

Environmental Conditions Constrain the Distribution and Diversity of Archaeal merA in Yellowstone National Park, Wyoming, U.S.A.

Wang, Y., Boyd, E., Crane, S., Lu-Irving, P., Krabbenhoft, D., King, S., … Dighton, J. (2011). Microbial Ecology, 62(4), 739–752. doi:10.1007/s00248-011-9890-z

Development of a genetic system for the archaeal virus Sulfolobus turreted icosahedral virus (STIV)

Wirth, J. F., Snyder, J. C., Hochstein, R. A., Ortmann, A. C., Willits, D. A., Douglas, T., & Young, M. J. (2011). Virology, 415(1), 6–11. doi:10.1016/j.virol.2011.03.023

May 2011 Adsorption and Surface Complexation Study of L-DOPA on Rutile (α-TiO 2 ) in NaCl Solutions

Bahri, S., Jonsson, C. M., Jonsson, C. L., Azzolini, D., Sverjensky, D. A., & Hazen, R. M. (2011). Environ. Sci. Technol., 45(9), 3959–3966. doi:10.1021/es1042832

The near-IR spectrum of Titan modeled with an improved methane line list

Bailey, J., Ahlsved, L., & Meadows, V. S. (2011). Icarus, 213(1), 218–232. doi:10.1016/j.icarus.2011.02.009

Stardust-NExT, Deep Impact, and the accelerating spin of 9P/Tempel 1

Belton, M. J. S., Meech, K. J., Chesley, S., Pittichová, J., Carcich, B., Drahus, M., … Harris, A. (2011). Icarus, 213(1), 345–368. doi:10.1016/j.icarus.2011.01.006

Comment on "A Bacterium That Can Grow by Using Arsenic Instead of Phosphorus"

Benner, S. A. (2011). Science, 332(6034), 1149–1149. doi:10.1126/science.1201304

Diversity, Abundance, and Potential Activity of Nitrifying and Nitrate-Reducing Microbial Assemblages in a Subglacial Ecosystem

Boyd, E. S., Lange, R. K., Mitchell, A. C., Havig, J. R., Hamilton, T. L., Lafreniere, M. J., … Shock, E. L. (2011). Applied and Environmental Microbiology, 77(14), 4778–4787. doi:10.1128/aem.00376-11

Phosphate biomineralization in mid-Neoproterozoic protists

Cohen, P. A., Schopf, J. W., Butterfield, N. J., Kudryavtsev, A. B., & Macdonald, F. A. (2011). Geology, 39(6), 539–542. doi:10.1130/g31833.1

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