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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March 2019Insights into Europa's ocean composition derived from its surface expression

Johnson, P. V., Hodyss, R., Vu, T. H., & Choukroun, M. (2019). Insights into Europa's ocean composition derived from its surface expression. Icarus, 321, 857–865. doi:10.1016/j.icarus.2018.12.009

Obliquity-driven sculpting of exoplanetary systems

Millholland, S., & Laughlin, G. (2019). Obliquity-driven sculpting of exoplanetary systems. Nature Astronomy. doi:10.1038/s41550-019-0701-7

Hints for a Turnover at the Snow Line in the Giant Planet Occurrence Rate

Fernandes, R. B., Mulders, G. D., Pascucci, I., Mordasini, C., & Emsenhuber, A. (2019). Hints for a Turnover at the Snow Line in the Giant Planet Occurrence Rate. The Astrophysical Journal, 874(1), 81. doi:10.3847/1538-4357/ab0300

CLIcK: a Continuum and Line fItting Kit for circumstellar disks

Liu, Y., Pascucci, I., & Henning, T. (2019). CLIcK: a Continuum and Line fItting Kit for circumstellar disks. Astronomy & Astrophysics, 623, A106. doi:10.1051/0004-6361/201834418

Mapping a systematic ribozyme fitness landscape reveals a frustrated evolutionary network for self-aminoacylating RNA

Pressman, A. D., Liu, Z., Janzen, E., Blanco, C., Müller, U. F., Joyce, G. F., … Chen, I. A. (2019). Mapping a systematic ribozyme fitness landscape reveals a frustrated evolutionary network for self-aminoacylating RNA. Journal of the American Chemical Society. doi:10.1021/jacs.8b13298

February 2019Fully oxygenated water columns over continental shelves before the Great Oxidation Event

Ostrander, C. M., Nielsen, S. G., Owens, J. D., Kendall, B., Gordon, G. W., Romaniello, S. J., & Anbar, A. D. (2019). Fully oxygenated water columns over continental shelves before the Great Oxidation Event. Nature Geoscience, 12(3), 186–191. doi:10.1038/s41561-019-0309-7

The Physical and Chemical Sedimentology of Two High-Altitude Acid Salars in Chile: Sedimentary Processes In An Extreme Environment

Benison, K. C. (2019). The Physical and Chemical Sedimentology of Two High-Altitude Acid Salars in Chile: Sedimentary Processes In An Extreme Environment. Journal of Sedimentary Research, 89(2), 147–167. doi:10.2110/jsr.2019.9

Local frustration around enzyme active sites

Freiberger, M. I., Guzovsky, A. B., Wolynes, P. G., Parra, R. G., & Ferreiro, D. U. (2019). Local frustration around enzyme active sites. Proceedings of the National Academy of Sciences, 116(10), 4037–4043. doi:10.1073/pnas.1819859116

Computational analysis of vibrational modes in tetra-sulfur using dimensionally reduced potential energy surface

Gayday, I., Teplukhin, A., & Babikov, D. (2019). Computational analysis of vibrational modes in tetra-sulfur using dimensionally reduced potential energy surface. Molecular Physics, None, 1–13. doi:10.1080/00268976.2019.1574038

Evolutionary dynamics ofde novomutations and mutant lineages arising in a simple, constant environment

Kinnersley, M., Schwartz, K., Boswell, J., Yang, D-D., Sherlock, G., & Rosenzweig, F. (2019). Evolutionary dynamics ofde novomutations and mutant lineages arising in a simple, constant environment. None. doi:10.1101/540625

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