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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April 2009A novel symbiosis between chemoautotrophic bacteria and a freshwater cave amphipod

Dattagupta, S., Schaperdoth, I., Montanari, A., Mariani, S., Kita, N., Valley, J. W., & Macalady, J. L. (2009). ISME J, 3(8), 935–943. doi:10.1038/ismej.2009.34

THE REDDENING TOWARD CASSIOPEIA A's SUPERNOVA: CONSTRAINING THE 56 Ni YIELD

Eriksen, K. A., Arnett, D., McCarthy, D. W., & Young, P. (2009). The Astrophysical Journal, 697(1), 29–36. doi:10.1088/0004-637x/697/1/29

26 Al AND THE FORMATION OF THE SOLAR SYSTEM FROM A MOLECULAR CLOUD CONTAMINATED BY WOLF-RAYET WINDS

Gaidos, E., Krot, A. N., Williams, J. P., & Raymond, S. N. (2009). The Astrophysical Journal, 696(2), 1854–1863. doi:10.1088/0004-637x/696/2/1854

SIMULTANEOUS OBSERVATIONS OF COMET C/2002 T7 (LINEAR) WITH THE BERKELEY-ILLINOIS-MARYLAND ASSOCIATION AND OWENS VALLEY RADIO OBSERVATORY INTERFEROMETERS: HCN AND CH 3 OH

Hogerheijde, M. R., Qi, C., De Pater, I., Blake, G. A., Friedel, D. N., Forster, J. R., … Palmer, P. (2009). The Astronomical Journal, 137(6), 4837–4845. doi:10.1088/0004-6256/137/6/4837

MAIN-BELT COMET P/2008 R1 (GARRADD)

Jewitt, D., Yang, B., & Haghighipour, N. (2009). The Astronomical Journal, 137(5), 4313–4321. doi:10.1088/0004-6256/137/5/4313

Oceanic nickel depletion and a methanogen famine before the Great Oxidation Event

Konhauser, K. O., Pecoits, E., Lalonde, S. V., Papineau, D., Nisbet, E. G., Barley, M. E., … Arndt, N. T. (2009). Nature, 458(7239), 750–753. doi:10.1038/nature07858

STABILITY OF ADDITIONAL PLANETS IN AND AROUND THE HABITABLE ZONE OF THE HD 47186 PLANETARY SYSTEM

Kopparapu, R. K., Raymond, S. N., & Barnes, R. (2009). The Astrophysical Journal, 695(2), L181–L184. doi:10.1088/0004-637x/695/2/l181

What makes a planet habitable?

Lammer, H., Bredehöft, J. H., Coustenis, A., Khodachenko, M. L., Kaltenegger, L., Grasset, O., … Prieur, D. (2009). The Astronomy and Astrophysics Review, 17(2), 181–249. doi:10.1007/s00159-009-0019-z

Film bulk acoustic-wave resonator based ultraviolet sensor

Qiu, X., Zhu, J., Oiler, J., Yu, C., Wang, Z., & Yu, H. (2009). Applied Physics Letters, 94(15), 151917. doi:10.1063/1.3122342

PLANET-PLANET SCATTERING LEADS TO TIGHTLY PACKED PLANETARY SYSTEMS

Raymond, S. N., Barnes, R., Veras, D., Armitage, P. J., Gorelick, N., & Greenberg, R. (2009). The Astrophysical Journal, 696(1), L98–L101. doi:10.1088/0004-637x/696/1/l98

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