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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May 2009A laboratory study on the thermally induced transformation of hydrogen cyanide (HCN) to the cyanogen anion (CN−) in Solar System analog ices

Jamieson, C. S., Chang, A. H. H., & Kaiser, R. I. (2009). Advances in Space Research, 43(9), 1446–1450. doi:10.1016/j.asr.2009.01.016

TRANSITS OF EARTH-LIKE PLANETS

Kaltenegger, L., & Traub, W. A. (2009). The Astrophysical Journal, 698(1), 519–527. doi:10.1088/0004-637x/698/1/519

Tracking Euxinia in the Ancient Ocean: A Multiproxy Perspective and Proterozoic Case Study

Lyons, T. W., Anbar, A. D., Severmann, S., Scott, C., & Gill, B. C. (2009). Annual Review of Earth and Planetary Sciences, 37(1), 507–534. doi:10.1146/annurev.earth.36.031207.124233

The worm turned, and the ocean followed

Lyons, T. W., & Gill, B. C. (2009). Proceedings of the National Academy of Sciences, 106(20), 8081–8082. doi:10.1073/pnas.0903380106

FORMATION OF FORMALDEHYDE AND CARBON DIOXIDE ON AN ICY GRAIN ANALOG USING FAST HYDROGEN ATOMS

Madzunkov, S. M., MacAskill, J. A., Chutjian, A., Ehrenfreund, P., Darrach, M. R., Vidali, G., & Shortt, B. J. (2009). The Astrophysical Journal, 697(1), 801–806. doi:10.1088/0004-637x/697/1/801

Elemental Composition of the Martian Crust

McSween, H. Y., Taylor, G. J., & Wyatt, M. B. (2009). Science, 324(5928), 736–739. doi:10.1126/science.1165871

A NEPTUNE-MASS PLANET ORBITING THE NEARBY G DWARF HD 16417

O'Toole, S., Tinney, C. G., Butler, R. P., Jones, H. R. A., Bailey, J., Carter, B. D., … Vogt, S. S. (2009). The Astrophysical Journal, 697(2), 1263–1268. doi:10.1088/0004-637x/697/2/1263

Diversity of hopanoids and squalene-hopene cyclases across a tropical land-sea gradient

Pearson, A., Leavitt, W. D., Sáenz, J. P., Summons, R. E., Tam, M-M., & Close, H. G. (2009). Environmental Microbiology, 11(5), 1208–1223. doi:10.1111/j.1462-2920.2008.01817.x

A KECK HIRES DOPPLER SEARCH FOR PLANETS ORBITING METAL-POOR DWARFS. II. ON THE FREQUENCY OF GIANT PLANETS IN THE METAL-POOR REGIME

Sozzetti, A., Torres, G., Latham, D. W., Stefanik, R. P., Korzennik, S. G., Boss, A. P., … Carney, B. W. (2009). The Astrophysical Journal, 697(1), 544–556. doi:10.1088/0004-637x/697/1/544

Exploration of Victoria Crater by the Mars Rover Opportunity

Squyres, S. W., Knoll, A. H., Arvidson, R. E., Ashley, J. W., Bell, J. F., Calvin, W. M., … Christensen, P. R. (2009). Science, 324(5930), 1058–1061. doi:10.1126/science.1170355

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