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 cool and distant formation of Mars

Brasser, R., Mojzsis, S. J., Matsumura, S., & Ida, S. (2017). The cool and distant formation of Mars. Earth and Planetary Science Letters, 468, 85–93. doi:10.1016/j.epsl.2017.04.005

Refractory materials in comet samples

Joswiak, D. J., Brownlee, D. E., Nguyen, A. N., & Messenger, S. (2017). Refractory materials in comet samples. Meteoritics & Planetary Science, 52(8), 1612–1648. doi:10.1111/maps.12877

DECAY OF THE SEA ANEMONE METRIDIUM (ACTINIARIA): IMPLICATIONS FOR THE PRESERVATION OF CNIDARIAN POLYPS AND OTHER SOFT-BODIED DIPLOBLAST-GRADE ANIMALS

McMahon, S., Tarhan, L. G., & Briggs, D. E. G. (2017). DECAY OF THE SEA ANEMONE METRIDIUM (ACTINIARIA): IMPLICATIONS FOR THE PRESERVATION OF CNIDARIAN POLYPS AND OTHER SOFT-BODIED DIPLOBLAST-GRADE ANIMALS . PALAIOS, 32(6), 388–395. doi:10.2110/palo.2016.102

Combining Catalytic Microparticles with Droplets Formed by Phase Coexistence: Adsorption and Activity of Natural Clays at the Aqueous/Aqueous Interface

Pir Cakmak, F., & Keating, C. D. (2017). Combining Catalytic Microparticles with Droplets Formed by Phase Coexistence: Adsorption and Activity of Natural Clays at the Aqueous/Aqueous Interface. Scientific Reports, 7(1), None. doi:10.1038/s41598-017-03033-z

Flexible Proteins at the Origin of Life

Pohorille, A., Wilson, M. A., & Shannon, G. (2017). Flexible Proteins at the Origin of Life. Life, 7(2), 23. doi:10.3390/life7020023

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

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

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