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 2013Re-Os geochronology and coupled Os-Sr isotope constraints on the Sturtian snowball Earth

Rooney, A. D., Macdonald, F. A., Strauss, J. V., Dudas, F. O., Hallmann, C., & Selby, D. (2013). Proceedings of the National Academy of Sciences, 111(1), 51–56. doi:10.1073/pnas.1317266110

CHARACTERIZING THE PURPLE EARTH: MODELING THE GLOBALLY INTEGRATED SPECTRAL VARIABILITY OF THE ARCHEAN EARTH

Sanromá, E., Pallé, E., Parenteau, M. N., Kiang, N. Y., Gutiérrez-Navarro, A. M., López, R., & Montañés-Rodríguez, P. (2013). The Astrophysical Journal, 780(1), 52. doi:10.1088/0004-637x/780/1/52

The Singular Quest for a Universal Tree of Life

Sapp, J., & Fox, G. E. (2013). Microbiology and Molecular Biology Reviews, 77(4), 541–550. doi:10.1128/mmbr.00038-13

BIOLOGICAL EFFECTS ON THE SOURCE OF GEONEUTRINOS

Sleep, N. H., Bird, D. K., & Rosing, M. T. (2013). Int. J. Mod. Phys. A, 28(30), 1330047. doi:10.1142/s0217751x13300470

Effects of Metabolism and Physiology on the Production of Okenone and Bacteriochlorophyll a in Purple Sulfur Bacteria

Smith, D., Scott, J., Steele, A., Cody, G., Ohara, S., & Fogel, M. (2013). Geomicrobiology Journal, 31(2), 128–137. doi:10.1080/01490451.2013.815293

The bulk composition of Mars

Taylor, G. J. (2013). Chemie der Erde - Geochemistry, 73(4), 401–420. doi:10.1016/j.chemer.2013.09.006

Mineralogy of a Mudstone at Yellowknife Bay, Gale Crater, Mars

Vaniman, D. T., Bish, D. L., Ming, D. W., Bristow, T. F., Morris, R. V., Blake, D. F., … Chipera, S. J. (2013). Science, 343(6169), 1243480–1243480. doi:10.1126/science.1243480

ORGANIC SPECIES IN INFRARED DARK CLOUDS

Vasyunina, T., Vasyunin, A. I., Herbst, E., Linz, H., Voronkov, M., Britton, T., … Zinchenko, I. (2013). The Astrophysical Journal, 780(1), 85. doi:10.1088/0004-637x/780/1/85

Isotopes of nitrogen on Mars: Atmospheric measurements by Curiosity's mass spectrometer

Wong, M. H., Atreya, S. K., Mahaffy, P. N., Franz, H. B., Malespin, C., Trainer, M. G., … Stern, J. C. (2013). Geophysical Research Letters, 40(23), 6033–6037. doi:10.1002/2013gl057840

The rise of oxygen and the hydrogen hourglass

Zahnle, K. J., Catling, D. C., & Claire, M. W. (2013). Chemical Geology, 362(None), 26–34. doi:10.1016/j.chemgeo.2013.08.004

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