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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February 2017Onset of the aerobic nitrogen cycle during the Great Oxidation Event

Zerkle, A. L., Poulton, S. W., Newton, R. J., Mettam, C., Claire, M. W., Bekker, A., & Junium, C. K. (2017). Onset of the aerobic nitrogen cycle during the Great Oxidation Event. Nature, 542(7642), 465–467. doi:10.1038/nature20826

Triboelectric nanogenerators for sensitive nano-coulomb molecular mass spectrometry

Li, A., Zi, Y., Guo, H., Wang, Z. L., & Fernández, F. M. (2017). Triboelectric nanogenerators for sensitive nano-coulomb molecular mass spectrometry. Nature Nanotechnology, 12(5), 481–487. doi:10.1038/nnano.2017.17

Catalytic diversity in self-propagating peptide assemblies

Omosun, T. O., Hsieh, M-C., Childers, W. S., Das, D., Mehta, A. K., Anthony, N. R., … Lynn, D. G. (2017). Catalytic diversity in self-propagating peptide assemblies. Nature Chemistry, 9(8), 805–809. doi:10.1038/nchem.2738

Experimental Evolution of Escherichia coli Harboring an Ancient Translation Protein

Kacar, B., Ge, X., Sanyal, S., & Gaucher, E. A. (2017). Experimental Evolution of Escherichia coli Harboring an Ancient Translation Protein. Journal of Molecular Evolution, 84(2-3), 69–84. doi:10.1007/s00239-017-9781-0

The mineralogy, petrology, and composition of anomalous eucrite Emmaville

Barrett, T. J., Mittlefehldt, D. W., Greenwood, R. C., Charlier, B. L. A., Hammond, S. J., Ross, D. K., … Grady, M. M. (2017). The mineralogy, petrology, and composition of anomalous eucrite Emmaville. Meteoritics & Planetary Science, 52(4), 656–668. doi:10.1111/maps.12818

Neutral and niche dynamics in a synthetic microbial community

Cira, N. J., Pearce, M. T., & Quake, S. R. (2017). Neutral and niche dynamics in a synthetic microbial community. None. doi:10.1101/107896

Evaporative fractionation of zinc during the first nuclear detonation

Day, J. M. D., Moynier, F., Meshik, A. P., Pradivtseva, O. V., & Petit, D. R. (2017). Evaporative fractionation of zinc during the first nuclear detonation. Science Advances, 3(2), e1602668. doi:10.1126/sciadv.1602668

Constraints on mechanisms of chondrule formation from chondrule precursors and chronology of transient heating events in the protoplanetary disk

Krot, A. N., & Nagashima, K. (2017). Constraints on mechanisms of chondrule formation from chondrule precursors and chronology of transient heating events in the protoplanetary disk. GEOCHEMICAL JOURNAL, 51(1), 45–68. doi:10.2343/geochemj.2.0459

Iron isotopic fractionation between silicate mantle and metallic core at high pressure

Liu, J., Dauphas, N., Roskosz, M., Hu, M. Y., Yang, H., Bi, W., … Lin, J-F. (2017). Iron isotopic fractionation between silicate mantle and metallic core at high pressure. Nature Communications, 8, 14377. doi:10.1038/ncomms14377

Killing by Type VI secretion drives genetic phase separation and correlates with increased cooperation

McNally, L., Bernardy, E., Thomas, J., Kalziqi, A., Pentz, J., Brown, S. P., … Ratcliff, W. C. (2017). Killing by Type VI secretion drives genetic phase separation and correlates with increased cooperation. Nature Communications, 8, 14371. doi:10.1038/ncomms14371

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