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 2009A comparison of water vapor line parameters for modeling the Venus deep atmosphere

Bailey, J. (2009). Icarus, 201(2), 444–453. doi:10.1016/j.icarus.2009.01.013

TIDAL LIMITS TO PLANETARY HABITABILITY

Barnes, R., Jackson, B., Greenberg, R., & Raymond, S. N. (2009). The Astrophysical Journal, 700(1), L30–L33. doi:10.1088/0004-637x/700/1/l30

REAL-TIME OPTICAL SPECTROSCOPY OF VACUUM ULTRAVIOLET IRRADIATED PYRENE:H 2 O INTERSTELLAR ICE

Bouwman, J., Paardekooper, D. M., Cuppen, H. M., Linnartz, H., & Allamandola, L. J. (2009). The Astrophysical Journal, 700(1), 56–62. doi:10.1088/0004-637x/700/1/56

A biomarker based on the stable isotopes of nickel

Cameron, V., Vance, D., Archer, C., & House, C. H. (2009). Proceedings of the National Academy of Sciences, 106(27), 10944–10948. doi:10.1073/pnas.0900726106

Serpentinizing Fluids Craft Microbial Habitat

Cardace, D., & Hoehler, T. M. (2009). Northeastern Naturalist, 16(sp5), 272–284. doi:10.1656/045.016.0520

Is amino acid racemization a useful tool for screening for ancient DNA in bone?

Collins, M. J., Penkman, K. E. H., Rohland, N., Shapiro, B., Dobberstein, R. C., Ritz-Timme, S., & Hofreiter, M. (2009). Proceedings of the Royal Society B: Biological Sciences, 276(1669), 2971–2977. doi:10.1098/rspb.2009.0563

A Field-Based Cleaning Protocol for Sampling Devices Used in Life-Detection Studies

Eigenbrode, J., Benning, L. G., Maule, J., Wainwright, N., Steele, A., & Amundsen, H. E. F. (2009). Astrobiology, 9(5), 455–465. doi:10.1089/ast.2008.0275

REVEALING THE STRUCTURE OF A PRE-TRANSITIONAL DISK: THE CASE OF THE HERBIG F STAR SAO 206462 (HD 135344B)

Grady, C. A., Schneider, G., Sitko, M. L., Williger, G. M., Hamaguchi, K., Brittain, S. D., … Ablordeppey, K. (2009). The Astrophysical Journal, 699(2), 1822–1842. doi:10.1088/0004-637x/699/2/1822

High precision SIMS oxygen isotope analysis and the effect of sample topography

Kita, N. T., Ushikubo, T., Fu, B., & Valley, J. W. (2009). Chemical Geology, 264(1-4), 43–57. doi:10.1016/j.chemgeo.2009.02.012

Atmospheric pressure as a natural climate regulator for a terrestrial planet with a biosphere

Li, K-F., Pahlevan, K., Kirschvink, J. L., & Yung, Y. L. (2009). Proceedings of the National Academy of Sciences, 106(24), 9576–9579. doi:10.1073/pnas.0809436106

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