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 2015The Cambrian explosion

Briggs, D. E. G. (2015). Current Biology, 25(19), R864–R868. doi:10.1016/j.cub.2015.04.047

Tracing Biosignature Preservation of Geothermally Silicified Microbial Textures into the Geological Record

Campbell, K. A., Lynne, B. Y., Handley, K. M., Jordan, S., Farmer, J. D., Guido, D. M., … Foucher, F. (2015). Astrobiology, 15(10), 858–882. doi:10.1089/ast.2015.1307

3D MODELING OF GJ1214B’S ATMOSPHERE: VERTICAL MIXING DRIVEN BY AN ANTI-HADLEY CIRCULATION

Charnay, B., Meadows, V., & Leconte, J. (2015). The Astrophysical Journal, 813(1), 15. doi:10.1088/0004-637x/813/1/15

Global warming and the end-Permian extinction event: Proxy and modeling perspectives

Cui, Y., & Kump, L. R. (2015). Earth-Science Reviews, 149(None), 5–22. doi:10.1016/j.earscirev.2014.04.007

In situ metabolism in halite endolithic microbial communities of the hyperarid Atacama Desert

Davila, A. F., Hawes, I., Araya, J. G., Gelsinger, D. R., DiRuggiero, J., Ascaso, C., … Osano, A. (2015). Frontiers in Microbiology, 6(None), None. doi:10.3389/fmicb.2015.01035

Ancestral state reconstruction of ontogeny supports a bilaterian affinity forDickinsonia

Gold, D. A., Runnegar, B., Gehling, J. G., & Jacobs, D. K. (2015). Evolution & Development, 17(6), 315–324. doi:10.1111/ede.12168

Deposition, exhumation, and paleoclimate of an ancient lake deposit, Gale crater, Mars

Grotzinger, J. P., Gupta, S., Malin, M. C., Rubin, D. M., Schieber, J., Siebach, K., … Sumner, D. Y. (2015). Science, 350(6257), aac7575–aac7575. doi:10.1126/science.aac7575

ABIOTIC O2LEVELS ON PLANETS AROUND F, G, K, AND M STARS: POSSIBLE FALSE POSITIVES FOR LIFE?

Harman, C. E., Schwieterman, E. W., Schottelkotte, J. C., & Kasting, J. F. (2015). The Astrophysical Journal, 812(2), 137. doi:10.1088/0004-637x/812/2/137

Accretion of Uranus and Neptune from inward-migrating planetary embryos blocked by Jupiter and Saturn

Izidoro, A., Morbidelli, A., Raymond, S. N., Hersant, F., & Pierens, A. (2015). A&A, 582(None), A99. doi:10.1051/0004-6361/201425525

Noise-Induced Mechanism for Biological Homochirality of Early Life Self-Replicators

Jafarpour, F., Biancalani, T., & Goldenfeld, N. (2015). Physical Review Letters, 115(15), None. doi:10.1103/physrevlett.115.158101

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