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 2019From Planetary Quarantine to Planetary Protection: A NASA and International Story

Rummel, J. D. (2019). From Planetary Quarantine to Planetary Protection: A NASA and International Story. Astrobiology. doi:10.1089/ast.2018.1944

Kinematic Links and the Coevolution of MHD Winds, Jets, and Inner Disks from a High-resolution Optical [${\rm{O}}\,{\rm{I}}$] Survey

Banzatti, A., Pascucci, I., Edwards, S., Fang, M., Gorti, U., & Flock, M. (2019). Kinematic Links and the Coevolution of MHD Winds, Jets, and Inner Disks from a High-resolution Optical [${\rm{O}}\,{\rm{I}}$] Survey. The Astrophysical Journal, 870(2), 76. doi:10.3847/1538-4357/aaf1aa

Discovery of δ Scuti Pulsations in the Young Hybrid Debris Disk Star HD 156623

Mellon, S. N., Mamajek, E. E., Zwintz, K., David, T. J., Stuik, R., J. Talens, G. J., … Crawford, S. M. (2019). Discovery of δ Scuti Pulsations in the Young Hybrid Debris Disk Star HD 156623. The Astrophysical Journal, 870(1), 36. doi:10.3847/1538-4357/aaf008

Nitrogen Content in the Earth's Outer Core

Bajgain, S. K., Mookherjee, M., Dasgupta, R., Ghosh, D. B., & Karki, B. B. (2019). Nitrogen Content in the Earth's Outer Core. Geophysical Research Letters, 46(1), 89–98. doi:10.1029/2018gl080555

Sweep Jet Collection Laser-Induced Acoustic Desorption Atmospheric Pressure Photoionization for Lipid Analysis Applications

Benham, K., Fernández, F. M., & Orlando, T. M. (2019). Sweep Jet Collection Laser-Induced Acoustic Desorption Atmospheric Pressure Photoionization for Lipid Analysis Applications. Journal of The American Society for Mass Spectrometry. doi:10.1007/s13361-018-2118-4

Delivery of carbon, nitrogen, and sulfur to the silicate Earth by a giant impact

Grewal, D. S., Dasgupta, R., Sun, C., Tsuno, K., & Costin, G. (2019). Delivery of carbon, nitrogen, and sulfur to the silicate Earth by a giant impact. Science Advances, 5(1), None. doi:10.1126/sciadv.aau3669

Complete Genome Sequence and Methylome Analysis of Micrococcus luteus SA211, a Halophilic, Lithium-Tolerant Actinobacterium from Argentina

Martínez, F. L., Anton, B. P., DasSarma, P., Rajal, V., Irazusta, V., Roberts, R. J., & DasSarma, S. (2019). Complete Genome Sequence and Methylome Analysis of Micrococcus luteus SA211, a Halophilic, Lithium-Tolerant Actinobacterium from Argentina. Microbiology Resource Announcements, 8(4), None. doi:10.1128/mra.01557-18

Deep Exploration of ϵ Eridani with Keck Ms-band Vortex Coronagraphy and Radial Velocities: Mass and Orbital Parameters of the Giant Exoplanet

Mawet, D., Hirsch, L., Lee, E. J., Ruffio, J-B., Bottom, M., Fulton, B. J., … Ygouf, M. (2019). Deep Exploration of ϵ Eridani with Keck Ms-band Vortex Coronagraphy and Radial Velocities: Mass and Orbital Parameters of the Giant Exoplanet. The Astronomical Journal, 157(1), 33. doi:10.3847/1538-3881/aaef8a

Cooling-driven oceanic anoxia across the Smithian/Spathian boundary (mid-early Triassic)

Song, H., Du, Y., Algeo, T. J., Tong, J., Owens, J. D., Song, H., … Lyons, T. W. (2019). Cooling-driven oceanic anoxia across the Smithian/Spathian boundary (mid-early Triassic). Earth-Science Reviews. doi:10.1016/j.earscirev.2019.01.009

December 2018Earth in five reactions: Grappling with meaning and value in science

Earth in five reactions: Grappling with meaning and value in science (2019). American Mineralogist, None(None), None. doi:10.2138/am-2019-6745

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