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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July 2015Comparison of the Mitochondrial Genomes and Steady State Transcriptomes of Two Strains of the Trypanosomatid Parasite, Leishmania tarentolae

Simpson, L., Douglass, S. M., Lake, J. A., Pellegrini, M., & Li, F. (2015). Comparison of the Mitochondrial Genomes and Steady State Transcriptomes of Two Strains of the Trypanosomatid Parasite, Leishmania tarentolae. PLOS Neglected Tropical Diseases, 9(7), e0003841. doi:10.1371/journal.pntd.0003841

A Geomimetic Approach to the Formation and Identification of Fossil Sterane Biomarkers in Crude Oil: 18- nor - D - homo -Androstane and 5α,14β-Androstane

Bender, M., Schmidtmann, M., Summons, R. E., Rullkötter, J., & Christoffers, J. (2015). Chem. Eur. J., 21(35), 12501–12508. doi:10.1002/chem.201502148

Patterns of sulfur isotope fractionation during microbial sulfate reduction

Bradley, A. S., Leavitt, W. D., Schmidt, M., Knoll, A. H., Girguis, P. R., & Johnston, D. T. (2015). Geobiology, 14(1), 91–101. doi:10.1111/gbi.12149

RNA Oligomerization in Laboratory Analogues of Alkaline Hydrothermal Vent Systems

Burcar, B. T., Barge, L. M., Trail, D., Watson, E. B., Russell, M. J., & McGown, L. B. (2015). Astrobiology, 15(7), 509–522. doi:10.1089/ast.2014.1280

Astrochemistry: Fullerene solves an interstellar puzzle

Ehrenfreund, P., & Foing, B. (2015). Nature, 523(7560), 296–297. doi:10.1038/523296a

Organic compounds on comet 67P/Churyumov-Gerasimenko revealed by COSAC mass spectrometry

Goesmann, F., Rosenbauer, H., Bredehoft, J. H., Cabane, M., Ehrenfreund, P., Gautier, T., … Giri, C. (2015). Science, 349(6247), aab0689–aab0689. doi:10.1126/science.aab0689

Trace Element Content of Sedimentary Pyrite in Black Shales

Gregory, D. D., Large, R. R., Halpin, J. A., Baturina, E. L., Lyons, T. W., Wu, S., … Danyushevsky, L. (2015). Economic Geology, 110(6), 1389–1410. doi:10.2113/econgeo.110.6.1389

Paleobiological Perspectives on Early Microbial Evolution

Knoll, A. H. (2015). Cold Spring Harb Perspect Biol, 7(7), a018093. doi:10.1101/cshperspect.a018093

Power limits for microbial life

LaRowe, D. E., & Amend, J. P. (2015). Frontiers in Microbiology, 6(None), None. doi:10.3389/fmicb.2015.00718

Gene Expression Data from the Moon Jelly, Aurelia, Provide Insights into the Evolution of the Combinatorial Code Controlling Animal Sense Organ Development

Nakanishi, N., Camara, A. C., Yuan, D. C., Gold, D. A., & Jacobs, D. K. (2015). PLoS ONE, 10(7), e0132544. doi:10.1371/journal.pone.0132544

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