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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August 2014 Bound Flavin Model Suggests Similar Electron-Transfer Mechanisms in Shewanella and Geobacter

Okamoto, A., Nakamura, R., Nealson, K. H., & Hashimoto, K. (2014). CHEMELECTROCHEM, 1(11), 1808–1812. doi:10.1002/celc.201402151

C/2013 R1 (LOVEJOY) AT IR WAVELENGTHS AND THE VARIABILITY OF CO ABUNDANCES AMONG OORT CLOUD COMETS

Paganini, L., Mumma, M. J., Villanueva, G. L., Keane, J. V., Blake, G. A., Bonev, B. P., … DiSanti, M. A. (2014). The Astrophysical Journal, 791(2), 122. doi:10.1088/0004-637x/791/2/122

Reflectance spectroscopy and optical functions for hydrated Fe-sulfates

Pitman, K. M., Noe Dobrea, E. Z., Jamieson, C. S., Dalton, J. B., Abbey, W. J., & Joseph, E. C. S. (2014). American Mineralogist, 99(8-9), 1593–1603. doi:10.2138/am.2014.4730

Can Increased Atmospheric CO 2 Levels Trigger a Runaway Greenhouse?

Ramirez, R. M., Kopparapu, R. K., Lindner, V., & Kasting, J. F. (2014). Astrobiology, 14(8), 714–731. doi:10.1089/ast.2014.1153

Transiting Exoplanet Survey Satellite (TESS)

Ricker, G. R., Winn, J. N., Vanderspek, R., Latham, D. W., Bakos, G. Á., Bean, J. L., … Berta-Thompson, Z. K. (2014). Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave. doi:10.1117/12.2063489

PROBING FOR EXOPLANETS HIDING IN DUSTY DEBRIS DISKS: DISK IMAGING, CHARACTERIZATION, AND EXPLORATION WITH HST /STIS MULTI-ROLL CORONAGRAPHY

Schneider, G., Grady, C. A., Hines, D. C., Stark, C. C., Debes, J. H., Carson, J., … Kuchner, M. J. (2014). The Astronomical Journal, 148(4), 59. doi:10.1088/0004-6256/148/4/59

Terrestrial aftermath of the Moon-forming impact

Sleep, N. H., Zahnle, K. J., & Lupu, R. E. (2014). Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 372(2024), 20130172–20130172. doi:10.1098/rsta.2013.0172

Microbial Acceleration of Olivine Dissolution via Siderophore Production

Torres, M. A., West, A. J., & Nealson, K. (2014). Procedia Earth and Planetary Science, 10(None), 118–122. doi:10.1016/j.proeps.2014.08.041

July 2014Amino acids generated from hydrated Titan tholins: Comparison with Miller–Urey electric discharge products

Cleaves, H. J., Neish, C., Callahan, M. P., Parker, E., Fernández, F. M., & Dworkin, J. P. (2014). Amino acids generated from hydrated Titan tholins: Comparison with Miller–Urey electric discharge products. Icarus, 237, 182–189. doi:10.1016/j.icarus.2014.04.042

Neurofibrillar Tangle Surrogates: Histone H1 Binding to Patterned Phosphotyrosine Peptide Nanotubes

Li, S., Sidorov, A. N., Mehta, A. K., Bisignano, A. J., Das, D., Childers, W. S., … Lynn, D. G. (2014). Neurofibrillar Tangle Surrogates: Histone H1 Binding to Patterned Phosphotyrosine Peptide Nanotubes. Biochemistry, 53(26), 4225–4227. doi:10.1021/bi500599a

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