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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September 2009Habitable Zones Exposed: Astrosphere Collapse Frequency as a Function of Stellar Mass

Smith, D. S., & Scalo, J. M. (2009). Astrobiology, 9(7), 673–681. doi:10.1089/ast.2009.0337

THERMAL ESCAPE FROM SUPER EARTH ATMOSPHERES IN THE HABITABLE ZONES OF M STARS

Tian, F. (2009). The Astrophysical Journal, 703(1), 905–909. doi:10.1088/0004-637x/703/1/905

Juvenile chemical sediments and the long term persistence of water at the surface of Mars

Tosca, N. J., & Knoll, A. H. (2009). Earth and Planetary Science Letters, 286(3-4), 379–386. doi:10.1016/j.epsl.2009.07.004

August 2009Multispectral images of Mercury from the first MESSENGER flyby: Analysis of global and regional color trends

Blewett, D. T., Robinson, M. S., Denevi, B. W., Gillis-Davis, J. J., Head, J. W., Solomon, S. C., … Holsclaw, G. M. (2009). Earth and Planetary Science Letters, 285(3-4), 272–282. doi:10.1016/j.epsl.2009.02.021

An analytical model for a transient vapor plume on the Moon

Davis, S. S. (2009). Icarus, 202(2), 383–392. doi:10.1016/j.icarus.2009.03.019

INTERSTELLAR MEDIUM SCULPTING OF THE HD 32297 DEBRIS DISK

Debes, J. H., Weinberger, A. J., & Kuchner, M. J. (2009). The Astrophysical Journal, 702(1), 318–326. doi:10.1088/0004-637x/702/1/318

Thermal evolution of Kuiper belt objects, with implications for cryovolcanism

Desch, S. J., Cook, J. C., Doggett, T. C., & Porter, S. B. (2009). Icarus, 202(2), 694–714. doi:10.1016/j.icarus.2009.03.009

Caloris impact basin: Exterior geomorphology, stratigraphy, morphometry, radial sculpture, and smooth plains deposits

Fassett, C. I., Head, J. W., Blewett, D. T., Chapman, C. R., Dickson, J. L., Murchie, S. L., … Solomon, S. C. (2009). Earth and Planetary Science Letters, 285(3-4), 297–308. doi:10.1016/j.epsl.2009.05.022

Could Pantheon Fossae be the result of the Apollodorus crater-forming impact within the Caloris basin, Mercury?

Freed, A. M., Solomon, S. C., Watters, T. R., Phillips, R. J., & Zuber, M. T. (2009). Earth and Planetary Science Letters, 285(3-4), 320–327. doi:10.1016/j.epsl.2009.02.038

Pit-floor craters on Mercury: Evidence of near-surface igneous activity

Gillis-Davis, J. J., Blewett, D. T., Gaskell, R. W., Denevi, B. W., Robinson, M. S., Strom, R. G., … Solomon, S. C. (2009). Earth and Planetary Science Letters, 285(3-4), 243–250. doi:10.1016/j.epsl.2009.05.023

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