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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December 2015Rarity in mass extinctions and the future of ecosystems

Hull, P. M., Darroch, S. A. F., & Erwin, D. H. (2015). Nature, 528(7582), 345–351. doi:10.1038/nature16160

A SMACK MODEL OF COLLIDING PLANETESIMALS IN THEβPICTORIS DEBRIS DISK

Nesvold, E. R., & Kuchner, M. J. (2015). The Astrophysical Journal, 815(1), 61. doi:10.1088/0004-637x/815/1/61

Dynamic changes in sulfate sulfur isotopes preceding the Ediacaran Shuram Excursion

Osburn, M. R., Owens, J., Bergmann, K. D., Lyons, T. W., & Grotzinger, J. P. (2015). Geochimica et Cosmochimica Acta, 170(None), 204–224. doi:10.1016/j.gca.2015.07.039

Physical and chemical controls on habitats for life in the deep subsurface beneath continents and ice

Parnell, J., & McMahon, S. (2015). Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 374(2059), 20140293. doi:10.1098/rsta.2014.0293

Euxinic conditions recorded in the ca. 1.93Ga Bravo Lake Formation, Nunavut (Canada): Implications for oceanic redox evolution

Partin, C. A., Bekker, A., Planavsky, N. J., & Lyons, T. W. (2015). Chemical Geology, 417(None), 148–162. doi:10.1016/j.chemgeo.2015.09.004

Large Carbonate Associated Sulfate isotopic variability between brachiopods, micrite, and other sedimentary components in Late Ordovician strata

Present, T. M., Paris, G., Burke, A., Fischer, W. W., & Adkins, J. F. (2015). Earth and Planetary Science Letters, 432(None), 187–198. doi:10.1016/j.epsl.2015.10.005

The Ecological Physiology of Earth's Second Oxygen Revolution

Sperling, E. A., Knoll, A. H., & Girguis, P. R. (2015). Annual Review of Ecology, Evolution, and Systematics, 46(1), 215–235. doi:10.1146/annurev-ecolsys-110512-135808

Science objectives and performances of NOMAD, a spectrometer suite for the ExoMars TGO mission

Vandaele, A. C., Neefs, E., Drummond, R., Thomas, I. R., Daerden, F., Lopez-Moreno, J-J., … Rodriguez, J. (2015). Planetary and Space Science, 119(None), 233–249. doi:10.1016/j.pss.2015.10.003

Methane Seep Carbonates Host Distinct, Diverse, and Dynamic Microbial Assemblages

Case, D. H., Pasulka, A. L., Marlow, J. J., Grupe, B. M., Levin, L. A., & Orphan, V. J. (2015). mBio, 6(6), e01348–15. doi:10.1128/mbio.01348-15

Genomic Reconstruction of an Uncultured Hydrothermal Vent Gammaproteobacterial Methanotroph (Family Methylothermaceae) Indicates Multiple Adaptations to Oxygen Limitation

Skennerton, C. T., Ward, L. M., Michel, A., Metcalfe, K., Valiente, C., Mullin, S., … Chan, K. Y. (2015). Frontiers in Microbiology, 6(None), None. doi:10.3389/fmicb.2015.01425

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