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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March 2015The main-belt comets: The Pan-STARRS1 perspective

Hsieh, H. H., Denneau, L., Wainscoat, R. J., Schörghofer, N., Bolin, B., Fitzsimmons, A., … Jedicke, R. (2015). Icarus, 248(None), 289–312. doi:10.1016/j.icarus.2014.10.031

Extraordinarily Adaptive Properties of the Genetically Encoded Amino Acids

Ilardo, M., Meringer, M., Freeland, S., Rasulev, B., & James Cleaves II, H. (2015). Scientific Reports, 5(None), 9414. doi:10.1038/srep09414

A kinetic study of the formation of organic solids from formaldehyde: Implications for the origin of extraterrestrial organic solids in primitive Solar System objects

Kebukawa, Y., & Cody, G. D. (2015). Icarus, 248(None), 412–423. doi:10.1016/j.icarus.2014.11.005

Catabolic rates, population sizes and doubling/replacement times of microorganisms in natural settings

LaRowe, D. E., & Amend, J. P. (2015). American Journal of Science, 315(3), 167–203. doi:10.2475/03.2015.01

Decline in oceanic sulfate levels during the early Mesoproterozoic

Luo, G., Ono, S., Huang, J., Algeo, T. J., Li, C., Zhou, L., … Robinson, A. (2015). Precambrian Research, 258(None), 36–47. doi:10.1016/j.precamres.2014.12.014

Solubility of Polyethers in Hydrocarbons at Low Temperatures. A Model for Potential Genetic Backbones on Warm Titans

McLendon, C., Opalko, F. J., Illangkoon, H. I., & Benner, S. A. (2015). Astrobiology, 15(3), 200–206. doi:10.1089/ast.2014.1212

THE COMPOSITION OF INTERSTELLAR GRAINS TOWARD ζ OPHIUCHI: CONSTRAINING THE ELEMENTAL BUDGET NEAR THE DIFFUSE-DENSE CLOUD TRANSITION

Poteet, C. A., Whittet, D. C. B., & Draine, B. T. (2015). The Astrophysical Journal, 801(2), 110. doi:10.1088/0004-637x/801/2/110

M DWARF LUMINOSITY, RADIUS, AND α -ENRICHMENT FROM I -BAND SPECTRAL FEATURES

Terrien, R. C., Mahadevan, S., Bender, C. F., Deshpande, R., & Robertson, P. (2015). The Astrophysical Journal, 802(1), L10. doi:10.1088/2041-8205/802/1/l10

Strong water isotopic anomalies in the martian atmosphere: Probing current and ancient reservoirs

Villanueva, G. L., Mumma, M. J., Novak, R. E., Kaufl, H. U., Hartogh, P., Encrenaz, T., … Tokunaga, A. (2015). Science, 348(6231), 218–221. doi:10.1126/science.aaa3630

Micro-scale quadruple sulfur isotope analysis of pyrite from the ∼3480Ma Dresser Formation: New insights into sulfur cycling on the early Earth

Wacey, D., Noffke, N., Cliff, J., Barley, M. E., & Farquhar, J. (2015). Precambrian Research, 258(None), 24–35. doi:10.1016/j.precamres.2014.12.012

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