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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April 2019Climates of Warm Earth-like Planets. II. Rotational “Goldilocks” Zones for Fractional Habitability and Silicate Weathering

Jansen, T., Scharf, C., Way, M., & Genio, A. D. (2019). Climates of Warm Earth-like Planets. II. Rotational “Goldilocks” Zones for Fractional Habitability and Silicate Weathering. The Astrophysical Journal, 875(2), 79. doi:10.3847/1538-4357/ab113d

High-precision Dynamical Masses of Pre-main-sequence Stars with ALMA and Gaia

Sheehan, P. D., Wu, Y-L., Eisner, J. A., & Tobin, J. J. (2019). High-precision Dynamical Masses of Pre-main-sequence Stars with ALMA and Gaia. The Astrophysical Journal, 874(2), 136. doi:10.3847/1538-4357/ab09f9

Breezing through the Space Environment of Barnard’s Star b

Alvarado-Gómez, J. D., Garraffo, C., Drake, J. J., Brown, B. P., Oishi, J. S., Moschou, S. P., & Cohen, O. (2019). Breezing through the Space Environment of Barnard’s Star b. The Astrophysical Journal, 875(2), L12. doi:10.3847/2041-8213/ab1489

Compositional Characterization of Complex Protopeptide Libraries via Triboelectric Nanogenerator Orbitrap Mass Spectrometry

Bouza, M., Li, A., Forsythe, J. G., Petrov, A., Wang, Z. L., & Fernández, F. M. (2019). Compositional Characterization of Complex Protopeptide Libraries via Triboelectric Nanogenerator Orbitrap Mass Spectrometry. Rapid Communications in Mass Spectrometry. doi:10.1002/rcm.8469

Discovery of a Compact Companion to a Nearby Star

Kane, S. R., Dalba, P. A., Horner, J., Li, Z., Wittenmyer, R. A., Horch, E. P., … Everett, M. E. (2019). Discovery of a Compact Companion to a Nearby Star. The Astrophysical Journal, 875(1), 74. doi:10.3847/1538-4357/ab0e74

Complete arsenic-based respiratory cycle in the marine microbial communities of pelagic oxygen-deficient zones

Saunders, J. K., Fuchsman, C. A., McKay, C., & Rocap, G. (2019). Complete arsenic-based respiratory cycle in the marine microbial communities of pelagic oxygen-deficient zones. Proceedings of the National Academy of Sciences, None, 201818349. doi:10.1073/pnas.1818349116

Atmospheric mass-loss from high-velocity giant impacts

Yalinewich, A., & Schlichting, H. (2019). Atmospheric mass-loss from high-velocity giant impacts. Monthly Notices of the Royal Astronomical Society, 486(2), 2780–2789. doi:10.1093/mnras/stz1049

March 2019Bayesian Estimation of Earth’s Undiscovered Mineralogical Diversity Using Noninformative Priors

Hystad, G., Eleish, A., Hazen, R. M., Morrison, S. M., & Downs, R. T. (2019). Bayesian Estimation of Earth’s Undiscovered Mineralogical Diversity Using Noninformative Priors. Mathematical Geosciences, 51(4), 401–417. doi:10.1007/s11004-019-09795-8

Wide diversity of methane and short-chain alkane metabolisms in uncultured archaea

Borrel, G., Adam, P. S., McKay, L. J., Chen, L-X., Sierra-GarcíA, I. N., Sieber, C. M. K., … Gribaldo, S. (2019). Wide diversity of methane and short-chain alkane metabolisms in uncultured archaea. Nature Microbiology, 4(4), 603–613. doi:10.1038/s41564-019-0363-3

Surficial weathering of kaolin regolith in a subtropical climate: Implications for supergene pedogenesis and bedrock argillization

Fang, Q., Hong, H., Furnes, H., Chorover, J., Luo, Q., Zhao, L., & Algeo, T. J. (2019). Surficial weathering of kaolin regolith in a subtropical climate: Implications for supergene pedogenesis and bedrock argillization. Geoderma, 337, 225–237. doi:10.1016/j.geoderma.2018.09.020

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