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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June 2017The Dark Side of the Mushroom Spring Microbial Mat: Life in the Shadow of Chlorophototrophs. II. Metabolic Functions of Abundant Community Members Predicted from Metagenomic Analyses

Thiel, V., Hügler, M., Ward, D. M., & Bryant, D. A. (2017). The Dark Side of the Mushroom Spring Microbial Mat: Life in the Shadow of Chlorophototrophs. II. Metabolic Functions of Abundant Community Members Predicted from Metagenomic Analyses. Frontiers in Microbiology, 8, None. doi:10.3389/fmicb.2017.00943

A model for sheath formation coupled to motility in Leptothrix ochracea

Vesenka, J., Havu, J., & Emerson, D. (2017). A model for sheath formation coupled to motility in Leptothrix ochracea. None. doi:10.1101/157073

Experimental constraints on reconstruction of Archean seawater Ni isotopic composition from banded iron formations

Wang, S-J., & Wasylenki, L. E. (2017). Experimental constraints on reconstruction of Archean seawater Ni isotopic composition from banded iron formations. Geochimica et Cosmochimica Acta, 206, 137–150. doi:10.1016/j.gca.2017.02.023

Molybdenum-Based Diazotrophy in a Sphagnum Peatland in Northern Minnesota

Warren, M. J., Lin, X., Gaby, J. C., Kretz, C. B., Kolton, M., Morton, P. L., … Glass, J. B. (2017). Molybdenum-Based Diazotrophy in a Sphagnum Peatland in Northern Minnesota. Applied and Environmental Microbiology, 83(17), e01174–17. doi:10.1128/aem.01174-17

A nonmagnetic differentiated early planetary body

Weiss, B. P., Wang, H., Sharp, T. G., Gattacceca, J., Shuster, D. L., Downey, B., … Wang, J. (2017). A nonmagnetic differentiated early planetary body. Earth and Planetary Science Letters, 468, 119–132. doi:10.1016/j.epsl.2017.03.026

The future of Stardust science

Westphal, A. J., Bridges, J. C., Brownlee, D. E., Butterworth, A. L., De Gregorio, B. T., Dominguez, G., … Zolensky, M. E. (2017). The future of Stardust science. Meteoritics & Planetary Science, 52(9), 1859–1898. doi:10.1111/maps.12893

An appraisal of the enzyme stability‐activity trade‐off

Miller, S. R. (2017). An appraisal of the enzyme stability‐activity trade‐off. Evolution, 71(7), 1876–1887. doi:10.1111/evo.13275

May 2017 In situ electrochemical enrichment and isolation of a magnetite-reducing bacterium from a high pH serpentinizing spring

Rowe, A. R., Yoshimura, M., LaRowe, D. E., Bird, L. J., Amend, J. P., Hashimoto, K., … Okamoto, A. (2017). In situ electrochemical enrichment and isolation of a magnetite-reducing bacterium from a high pH serpentinizing spring. Environmental Microbiology. doi:10.1111/1462-2920.13723

Organically bound iodine as a bottom-water redox proxy: Preliminary validation and application

Zhou, X., Jenkyns, H. C., Lu, W., Hardisty, D. S., Owens, J. D., Lyons, T. W., & Lu, Z. (2017). Organically bound iodine as a bottom-water redox proxy: Preliminary validation and application. Chemical Geology, 457, 95–106. doi:10.1016/j.chemgeo.2017.03.016

The Anoka, Minnesota iron meteorite as parent to Hopewell meteoritic metal beads from Havana, Illinois

McCoy, T. J., Marquardt, A. E., Wasson, J. T., Ash, R. D., & Vicenzi, E. P. (2017). The Anoka, Minnesota iron meteorite as parent to Hopewell meteoritic metal beads from Havana, Illinois. Journal of Archaeological Science, 81, 13–22. doi:10.1016/j.jas.2017.03.003

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