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 2021Evolution of Ephemeral Phosphate Minerals on Planetary Environments

Feng, T., Gull, M., Omran, A., Abbott-Lyon, H., & Pasek, M. A. (2021). Evolution of Ephemeral Phosphate Minerals on Planetary Environments. ACS Earth and Space Chemistry. doi:10.1021/acsearthspacechem.1c00007

The Evolution of Interdependence in a Four-Way Mealybug Symbiosis

Garber, A. I., Kupper, M., Laetsch, D. R., Weldon, S. R., Ladinsky, M. S., Bjorkman, P. J., & McCutcheon, J. P. (2021). The Evolution of Interdependence in a Four-Way Mealybug Symbiosis. Genome Biology and Evolution, 13(8), None. doi:10.1093/gbe/evab123

Transcriptional response to prolonged perchlorate exposure in the methanogen Methanosarcina barkeri and implications for Martian habitability

Harris, R. L., Schuerger, A. C., Wang, W., Tamama, Y., Garvin, Z. K., & Onstott, T. C. (2021). Transcriptional response to prolonged perchlorate exposure in the methanogen Methanosarcina barkeri and implications for Martian habitability. Scientific Reports, 11(1), None. doi:10.1038/s41598-021-91882-0

EDEN: Flare Activity of the Nearby Exoplanet-hosting M Dwarf Wolf 359 Based on K2 and EDEN Light Curves

Lin, C-L., Chen, W-P., Ip, W-H., Apai, D., Bixel, A., Boyle, R., … Häberle, M. (2021). EDEN: Flare Activity of the Nearby Exoplanet-hosting M Dwarf Wolf 359 Based on K2 and EDEN Light Curves. The Astronomical Journal, 162(1), 11. doi:10.3847/1538-3881/abf933

Transcriptional processing of an unnatural base pair by eukaryotic RNA polymerase II

Oh, J., Shin, J., Unarta, I. C., Wang, W., Feldman, A. W., Karadeema, R. J., … Wang, D. (2021). Transcriptional processing of an unnatural base pair by eukaryotic RNA polymerase II. Nature Chemical Biology. doi:10.1038/s41589-021-00817-3

Simulating Reflected Light Exoplanet Spectra of the Promising Direct Imaging Target, υ Andromedae d, with a New, Fast Sampling Method Using the Planetary Spectrum Generator

Saxena, P., Villanueva, G. L., Zimmerman, N. T., Mandell, A. M., & Smith, A. J. R. W. (2021). Simulating Reflected Light Exoplanet Spectra of the Promising Direct Imaging Target, υ Andromedae d, with a New, Fast Sampling Method Using the Planetary Spectrum Generator. The Astronomical Journal, 162(1), 30. doi:10.3847/1538-3881/abf657

Water-Soluble Supramolecular Polymers of Paired and Stacked Heterocycles: Assembly, Structure, Properties, and a Possible Path to Pre-RNA

Schuster, G. B., Cafferty, B. J., Karunakaran, S. C., & Hud, N. V. (2021). Water-Soluble Supramolecular Polymers of Paired and Stacked Heterocycles: Assembly, Structure, Properties, and a Possible Path to Pre-RNA. Journal of the American Chemical Society, 143(25), 9279–9296. doi:10.1021/jacs.0c13081

Diverse Viruses in Deep-Sea Hydrothermal Vent Fluids Have Restricted Dispersal across Ocean Basins

Thomas, E., Anderson, R. E., Li, V., Rogan, L. J., & Huber, J. A. (2021). Diverse Viruses in Deep-Sea Hydrothermal Vent Fluids Have Restricted Dispersal across Ocean Basins. mSystems, 6(3), None. doi:10.1128/msystems.00068-21

What Can Meteorites Tell Us About the Formation of Jupiter?

Weiss, B. P., & Bottke, W. F. (2021). What Can Meteorites Tell Us About the Formation of Jupiter? AGU Advances, 2(2), None. doi:10.1029/2020av000376

Ligand Effects on Biotic and Abiotic Fe(II) Oxidation by the Microaerophile Sideroxydans lithotrophicus

Zhou, N., Luther, G. W., & Chan, C. S. (2021). Ligand Effects on Biotic and Abiotic Fe(II) Oxidation by the Microaerophile Sideroxydans lithotrophicus. Environmental Science & Technology. doi:10.1021/acs.est.1c00497

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