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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January 2020Nanopore Sequencing of an Expanded Genetic Alphabet Reveals High-Fidelity Replication of a Predominantly Hydrophobic Unnatural Base Pair

Ledbetter, M. P., Craig, J. M., Karadeema, R. J., Noakes, M. T., Kim, H. C., Abell, S. J., … Romesberg, F. E. (2020). Nanopore Sequencing of an Expanded Genetic Alphabet Reveals High-Fidelity Replication of a Predominantly Hydrophobic Unnatural Base Pair. Journal of the American Chemical Society, 142(5), 2110–2114. doi:10.1021/jacs.9b09808

Quantifying the Bayesian Evidence for a Planet in Radial Velocity Data

Nelson, B. E., Ford, E. B., Buchner, J., Cloutier, R., Díaz, R. F., Faria, J. P., … Rukdee, S. (2020). Quantifying the Bayesian Evidence for a Planet in Radial Velocity Data. The Astronomical Journal, 159(2), 73. doi:10.3847/1538-3881/ab5190

Sensitive probing of exoplanetary oxygen via mid-infrared collisional absorption

Fauchez, T. J., Villanueva, G. L., Schwieterman, E. W., Turbet, M., Arney, G., Pidhorodetska, D., … Domagal-Goldman, S. D. (2020). Sensitive probing of exoplanetary oxygen via mid-infrared collisional absorption. Nature Astronomy, 4(4), 372–376. doi:10.1038/s41550-019-0977-7

Evidence for the charge disproportionation of iron in extraterrestrial bridgmanite

Bindi, L., Shim, S-H., Sharp, T. G., & Xie, X. (2020). Evidence for the charge disproportionation of iron in extraterrestrial bridgmanite. Science Advances, 6(2), eaay7893. doi:10.1126/sciadv.aay7893

Chemistry of Abiotic Nucleotide Synthesis

Yadav, M., Kumar, R., & Krishnamurthy, R. (2020). Chemistry of Abiotic Nucleotide Synthesis. Chemical Reviews. doi:10.1021/acs.chemrev.9b00546

Ceres: Astrobiological Target and Possible Ocean World

Castillo-Rogez, J. C., Neveu, M., Scully, J. E. C., House, C. H., Quick, L. C., Bouquet, A., … Young, E. (2020). Ceres: Astrobiological Target and Possible Ocean World. Astrobiology. doi:10.1089/ast.2018.1999

Metastable equilibrium of substitution reactions among oxygen- and nitrogen-bearing organic compounds at hydrothermal conditions

Robinson, K. J., Fecteau, K. M., Gould, I. R., Hartnett, H. E., Williams, L. B., & Shock, E. L. (2020). Metastable equilibrium of substitution reactions among oxygen- and nitrogen-bearing organic compounds at hydrothermal conditions. Geochimica et Cosmochimica Acta. doi:10.1016/j.gca.2019.12.030

Probing the Evolutionary History of Comets: An Investigation of the Hypervolatiles CO, CH4, and C2H6 in the Jupiter-family Comet 21P/Giacobini–Zinner

Roth, N. X., Gibb, E. L., Bonev, B. P., DiSanti, M. A., Russo, N. D., McKay, A. J., … Shou, Y. (2020). Probing the Evolutionary History of Comets: An Investigation of the Hypervolatiles CO, CH4, and C2H6 in the Jupiter-family Comet 21P/Giacobini–Zinner. The Astronomical Journal, 159(2), 42. doi:10.3847/1538-3881/ab536b

Large-Area Triboelectric Nanogenerator Mass Spectrometry: Expanded Coverage, Double-Bond Pinpointing, and Supercharging

Bouza, M., Li, Y., Wu, C., Guo, H., Wang, Z. L., & Fernández, F. M. (2020). Large-Area Triboelectric Nanogenerator Mass Spectrometry: Expanded Coverage, Double-Bond Pinpointing, and Supercharging. Journal of the American Society for Mass Spectrometry, 31(3), 727–734. doi:10.1021/jasms.0c00002

Magnetic Properties of Asteroid (162173) Ryugu

Hercik, D., Auster, H., Constantinescu, D., Blum, J., FornaçOn, K., Fujimoto, M., … Glassmeier, K. (2020). Magnetic Properties of Asteroid (162173) Ryugu. Journal of Geophysical Research: Planets. doi:10.1029/2019je006035

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