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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November 2018The wide binary fraction of solar-type stars: emergence of metallicity dependence at a < 200 AU

El-Badry, K., & Rix, H-W. (2018). The wide binary fraction of solar-type stars: emergence of metallicity dependence at a < 200 AU. Monthly Notices of the Royal Astronomical Society: Letters. doi:10.1093/mnrasl/sly206

A Late-type L Dwarf at 11 pc Hiding in the Galactic Plane Characterized Using Gaia DR2

Faherty, J. K., Gagné, J., Burgasser, A. J., Mamajek, E. E., Gonzales, E. C., Bardalez Gagliuffi, D. C., & Marocco, F. (2018). A Late-type L Dwarf at 11 pc Hiding in the Galactic Plane Characterized Using Gaia DR2. The Astrophysical Journal, 868(1), 44. doi:10.3847/1538-4357/aadd04

Maximum Angular Separation Epochs for Exoplanet Imaging Observations

Kane, S. R., Meshkat, T., & Turnbull, M. C. (2018). Maximum Angular Separation Epochs for Exoplanet Imaging Observations. The Astronomical Journal, 156(6), 267. doi:10.3847/1538-3881/aae981

Evolved Climates and Observational Discriminants for the TRAPPIST-1 Planetary System

Lincowski, A. P., Meadows, V. S., Crisp, D., Robinson, T. D., Luger, R., Lustig-Yaeger, J., & Arney, G. N. (2018). Evolved Climates and Observational Discriminants for the TRAPPIST-1 Planetary System. The Astrophysical Journal, 867(1), 76. doi:10.3847/1538-4357/aae36a

Exposed Areas Above Sea Level on Earth >3.5 Gyr Ago: Implications for Prebiotic and Primitive Biotic Chemistry

Bada, J., & Korenaga, J. (2018). Exposed Areas Above Sea Level on Earth >3.5 Gyr Ago: Implications for Prebiotic and Primitive Biotic Chemistry. Life, 8(4), 55. doi:10.3390/life8040055

Visions into Voyages for Planetary Science in the Decade 2013-2022

, ., , ., , ., & , . (2018). Visions into Voyages for Planetary Science in the Decade 2013-2022. None. doi:10.17226/25186

Evidence for oxygen-isotope exchange in refractory inclusions from Kaba (CV3.1) carbonaceous chondrite during fluid-rock interaction on the CV parent asteroid

Krot, A. N., Nagashima, K., Fintor, K., & Pál-Molnár, E. (2018). Evidence for oxygen-isotope exchange in refractory inclusions from Kaba (CV3.1) carbonaceous chondrite during fluid-rock interaction on the CV parent asteroid. Geochimica et Cosmochimica Acta. doi:10.1016/j.gca.2018.11.002

Biosignature Anisotropy Modeled on Temperate Tidally Locked M-dwarf Planets

Chen, H., Wolf, E. T., Kopparapu, R., Domagal-Goldman, S., & Horton, D. E. (2018). Biosignature Anisotropy Modeled on Temperate Tidally Locked M-dwarf Planets. The Astrophysical Journal, 868(1), L6. doi:10.3847/2041-8213/aaedb2

A New Look at T Tauri Star Forbidden Lines: MHD-driven Winds from the Inner Disk

Fang, M., Pascucci, I., Edwards, S., Gorti, U., Banzatti, A., Flock, M., … Dupree, A. K. (2018). A New Look at T Tauri Star Forbidden Lines: MHD-driven Winds from the Inner Disk. The Astrophysical Journal, 868(1), 28. doi:10.3847/1538-4357/aae780

October 2018Mapping Ice Algal Blooms in Southwest Greenland from Space

Wang, S., Tedesco, M., Xu, M., & Alexander, P. M. (2018). Mapping Ice Algal Blooms in Southwest Greenland from Space. Geophysical Research Letters. doi:10.1029/2018gl080455

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