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 2011A molecular palaeobiological hypothesis for the origin of aplacophoran molluscs and their derivation from chiton-like ancestors

Vinther, J., Sperling, E. A., Briggs, D. E. G., & Peterson, K. J. (2011). Proceedings of the Royal Society B: Biological Sciences, 279(1732), 1259–1268. doi:10.1098/rspb.2011.1773

Constraining atmospheric oxygen and seawater sulfate concentrations during Paleoproterozoic glaciation: In situ sulfur three-isotope microanalysis of pyrite from the Turee Creek Group, Western Australia

Williford, K. H., Van Kranendonk, M. J., Ushikubo, T., Kozdon, R., & Valley, J. W. (2011). Geochimica et Cosmochimica Acta, 75(19), 5686–5705. doi:10.1016/j.gca.2011.07.010

SPIN-ORBIT ALIGNMENT FOR THE CIRCUMBINARY PLANET HOST KEPLER-16 A

Winn, J. N., Albrecht, S., Johnson, J. A., Torres, G., Cochran, W. D., Marcy, G. W., … Howard, A. W. (2011). The Astrophysical Journal, 741(1), L1. doi:10.1088/2041-8205/741/1/l1

September 2011The Global Magnetic Field of Mercury from MESSENGER Orbital Observations

Anderson, B. J., Johnson, C. L., Korth, H., Purucker, M. E., Winslow, R. M., Slavin, J. A., … Solomon, S. C. (2011). Science, 333(6051), 1859–1862. doi:10.1126/science.1211001

The environmental affinities of marine higher taxa and possible biases in their first appearances in the fossil record

Anderson, B. M., Pisani, D., Miller, A. I., & Peterson, K. J. (2011). Geology, 39(10), 971–974. doi:10.1130/g32413.1

Hollows on Mercury: MESSENGER Evidence for Geologically Recent Volatile-Related Activity

Blewett, D. T., Chabot, N. L., Denevi, B. W., Ernst, C. M., Head, J. W., Izenberg, N. R., … Murchie, S. L. (2011). Science, 333(6051), 1856–1859. doi:10.1126/science.1211681

EVOLUTION OF THE SOLAR NEBULA. IX. GRADIENTS IN THE SPATIAL HETEROGENEITY OF THE SHORT-LIVED RADIOISOTOPES 60 Fe AND 26 Al AND THE STABLE OXYGEN ISOTOPES

Boss, A. P. (2011). The Astrophysical Journal, 739(2), 61. doi:10.1088/0004-637x/739/2/61

New constraints on early Solar System chronology from Al–Mg and U–Pb isotope systematics in the unique basaltic achondrite Northwest Africa 2976

Bouvier, A., Spivak-Birndorf, L. J., Brennecka, G. A., & Wadhwa, M. (2011). Geochimica et Cosmochimica Acta, 75(18), 5310–5323. doi:10.1016/j.gca.2011.06.033

MicroRNAs and phylogenomics resolve the relationships of Tardigrada and suggest that velvet worms are the sister group of Arthropoda

Campbell, L. I., Rota-Stabelli, O., Edgecombe, G. D., Marchioro, T., Longhorn, S. J., Telford, M. J., … Philippe, H. (2011). Proceedings of the National Academy of Sciences, 108(38), 15920–15924. doi:10.1073/pnas.1105499108

Organic materials in planetary and protoplanetary systems: nature or nurture?

Dalle Ore, C. M., Fulchignoni, M., Cruikshank, D. P., Barucci, M. A., Brunetto, R., Campins, H., … De Bergh, C. (2011). A&A, 533(None), A98. doi:10.1051/0004-6361/201116599

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