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 2013LARGE ABUNDANCES OF POLYCYCLIC AROMATIC HYDROCARBONS IN TITAN'S UPPER ATMOSPHERE

López-Puertas, M., Dinelli, B. M., Adriani, A., Funke, B., GarcíA-Comas, M., Moriconi, M. L., … D’Aversa, E. (2013). The Astrophysical Journal, 770(2), 132. doi:10.1088/0004-637x/770/2/132

The Laurentian record of Neoproterozoic glaciation, tectonism, and eukaryotic evolution in Death Valley, California

Macdonald, F. A., Prave, A. R., Petterson, R., Smith, E. F., Pruss, S. B., Oates, K., … Waechter, F. (2013). Geological Society of America Bulletin, 125(7-8), 1203–1223. doi:10.1130/b30789.1

Influence of bedrock mineral composition on microbial diversity in a subglacial environment

Mitchell, A. C., Lafreniere, M. J., Skidmore, M. L., & Boyd, E. S. (2013). Geology, 41(8), 855–858. doi:10.1130/g34194.1

Beating the acetyl coenzyme A-pathway to the origin of life

Nitschke, W., & Russell, M. J. (2013). Philosophical Transactions of the Royal Society B: Biological Sciences, 368(1622), 20120258–20120258. doi:10.1098/rstb.2012.0258

Recalibrating Equus evolution using the genome sequence of an early Middle Pleistocene horse

Orlando, L., Ginolhac, A., Zhang, G., Froese, D., Albrechtsen, A., Stiller, M., … Schubert, M. (2013). Nature, 499(7456), 74–78. doi:10.1038/nature12323

Secondary structure and domain architecture of the 23S and 5S rRNAs

Petrov, A. S., Bernier, C. R., Hershkovits, E., Xue, Y., Waterbury, C. C., Hsiao, C., … Stepanov, V. G. (2013). Nucleic Acids Research, 41(15), 7522–7535. doi:10.1093/nar/gkt513

HERSCHEL OBSERVATIONS OF GAS AND DUST IN THE UNUSUAL 49 Ceti DEBRIS DISK

Roberge, A., Kamp, I., Montesinos, B., Dent, W. R. F., Meeus, G., Donaldson, J. K., … Olofsson, J. (2013). The Astrophysical Journal, 771(1), 69. doi:10.1088/0004-637x/771/1/69

The inevitable journey to being

Russell, M. J., Nitschke, W., & Branscomb, E. (2013). Philosophical Transactions of the Royal Society B: Biological Sciences, 368(1622), 20120254–20120254. doi:10.1098/rstb.2012.0254

Fractionation of sulfur isotopes by Desulfovibrio vulgaris mutants lacking hydrogenases or type I tetraheme cytochrome c3

Sim, M. S., Wang, D. T., Zane, G. M., Wall, J. D., Bosak, T., & Ono, S. (2013). Frontiers in Microbiology, 4(None), None. doi:10.3389/fmicb.2013.00171

Boron Enrichment in Martian Clay

Stephenson, J. D., Hallis, L. J., Nagashima, K., & Freeland, S. J. (2013). PLoS ONE, 8(6), e64624. doi:10.1371/journal.pone.0064624

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