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 2017Hydrogen isotope composition of Thermoanaerobacterium saccharolyticum lipids: comparing wild type to a nfn- transhydrogenase mutant

Leavitt, W. D., Jean-Loup Murphy, S., Lynd, L. R., & Bradley, A. S. (2017). Hydrogen isotope composition of Thermoanaerobacterium saccharolyticum lipids: comparing wild type to a nfn- transhydrogenase mutant. Organic Geochemistry. doi:10.1016/j.orggeochem.2017.06.020

Characterization of a cold-active bacterium isolated from the South Pole “Ice Tunnel”

Madigan, M. T., Kempher, M. L., Bender, K. S., Sullivan, P., Matthew Sattley, W., Dohnalkova, A. C., & Joye, S. B. (2017). Characterization of a cold-active bacterium isolated from the South Pole “Ice Tunnel”. Extremophiles, 21(5), 891–901. doi:10.1007/s00792-017-0950-2

Characterization of a cold-adapted DNA photolyase from C. psychrerythraea 34H

Munshi, S., Rajamoorthi, A., & Stanley, R. J. (2017). Characterization of a cold-adapted DNA photolyase from C. psychrerythraea 34H. Extremophiles, 21(5), 919–932. doi:10.1007/s00792-017-0953-z

Autotrophic microbial arsenotrophy in arsenic-rich soda lakes

Oremland, R. S., Saltikov, C. W., Stolz, J. F., & Hollibaugh, J. T. (2017). Autotrophic microbial arsenotrophy in arsenic-rich soda lakes. FEMS Microbiology Letters, 364(15), None. doi:10.1093/femsle/fnx146

The forensics of fulgurite formation

Pasek, M. A., & Pasek, V. D. (2017). The forensics of fulgurite formation. Mineralogy and Petrology. doi:10.1007/s00710-017-0527-x

De novo active sites for resurrected Precambrian enzymes

Risso, V. A., Martinez-Rodriguez, S., Candel, A. M., Krüger, D. M., Pantoja-Uceda, D., Ortega-Muñoz, M., … Sanchez-Ruiz, J. M. (2017). De novo active sites for resurrected Precambrian enzymes. Nature Communications, 8, 16113. doi:10.1038/ncomms16113

Petrogenesis of Miller Range 07273, a new type of anomalous melt breccia: Implications for impact effects on the H chondrite asteroid

Ruzicka, A. M., Hutson, M., Friedrich, J. M., Rivers, M. L., Weisberg, M. K., Ebel, D. S., … Dolan, A. A. (2017). Petrogenesis of Miller Range 07273, a new type of anomalous melt breccia: Implications for impact effects on the H chondrite asteroid. Meteoritics & Planetary Science. doi:10.1111/maps.12901

Microbial manganese(III) reduction fuelled by anaerobic acetate oxidation

Szeinbaum, N., Lin, H., Brandes, J. A., Taillefert, M., Glass, J. B., & DiChristina, T. J. (2017). Microbial manganese(III) reduction fuelled by anaerobic acetate oxidation. Environmental Microbiology. doi:10.1111/1462-2920.13829

Assessing the utility of visible-to-shortwave infrared reflectance spectroscopy for analysis of soil weathering intensity and paleoclimate reconstruction

Zhao, L., Hong, H., Liu, J., Fang, Q., Yao, Y., Tan, W., … Algeo, T. J. (2017). Assessing the utility of visible-to-shortwave infrared reflectance spectroscopy for analysis of soil weathering intensity and paleoclimate reconstruction. Palaeogeography, Palaeoclimatology, Palaeoecology. doi:10.1016/j.palaeo.2017.07.007

Constraining the timing of the Great Oxidation Event within the Rubisco phylogenetic tree

Kacar, B., Hanson-Smith, V., Adam, Z. R., & Boekelheide, N. (2017). Constraining the timing of the Great Oxidation Event within the Rubisco phylogenetic tree. Geobiology, 15(5), 628–640. doi:10.1111/gbi.12243

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