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 2019Revisiting the pulsational characteristics of the exoplanet host star β Pictoris

Zwintz, K., Reese, D. R., Neiner, C., Pigulski, A., Kuschnig, R., Müllner, M., … Talens, G. J. (2019). Revisiting the pulsational characteristics of the exoplanet host star β Pictoris. Astronomy & Astrophysics, 627, A28. doi:10.1051/0004-6361/201834744

The Gemini Planet Imager Exoplanet Survey: Giant Planet and Brown Dwarf Demographics from 10 to 100 au

Nielsen, E. L., De Rosa, R. J., Macintosh, B., Wang, J. J., Ruffio, J-B., Chiang, E., … Wolff, S. (2019). The Gemini Planet Imager Exoplanet Survey: Giant Planet and Brown Dwarf Demographics from 10 to 100 au. The Astronomical Journal, 158(1), 13. doi:10.3847/1538-3881/ab16e9

Ultrafast flavin/tryptophan radical pair kinetics in a magnetically sensitive artificial protein

Bialas, C., Barnard, D., Auman, D., McBride, R., Jarocha, L., Hore, P. J., … Moser, C. C. (2019). Ultrafast flavin/tryptophan radical pair kinetics in a magnetically sensitive artificial protein. Physical Chemistry Chemical Physics. doi:10.1039/c9cp01916b

A light, chondritic xenolith in the Murchison (CM) chondrite – Formation by fluid-assisted percolation during metasomatism?

Kerraouch, I., Ebert, S., Patzek, M., Bischoff, A., Zolensky, M. E., Pack, A., … Le, L. (2019). A light, chondritic xenolith in the Murchison (CM) chondrite – Formation by fluid-assisted percolation during metasomatism? Geochemistry. doi:10.1016/j.chemer.2019.06.002

Optimization of Replication, Transcription, and Translation in a Semi-Synthetic Organism

Feldman, A. W., Dien, V. T., Karadeema, R. J., Fischer, E. C., You, Y., Anderson, B. A., … Romesberg, F. E. (2019). Optimization of Replication, Transcription, and Translation in a Semi-Synthetic Organism. Journal of the American Chemical Society. doi:10.1021/jacs.9b02075

Planetary protection technologies for planetary science instruments, spacecraft, and missions: Report of the NASA Planetary Protection Technology Definition Team (PPTDT)

Rummel, J. D., & Pugel, D. E. (2019). Planetary protection technologies for planetary science instruments, spacecraft, and missions: Report of the NASA Planetary Protection Technology Definition Team (PPTDT). Life Sciences in Space Research. doi:10.1016/j.lssr.2019.06.003

The composition and mineralogy of rocky exoplanets: A survey of >4000 stars from the Hypatia Catalog

Putirka, K. D., & Rarick, J. C. (2019). The composition and mineralogy of rocky exoplanets: A survey of >4000 stars from the Hypatia Catalog. American Mineralogist, 104(6), 817–829. doi:10.2138/am-2019-6787

Potential aeolian deposition of intra-crater layering: A case study of Henry crater, Mars

Day, M. D., & Catling, D. C. (2019). Potential aeolian deposition of intra-crater layering: A case study of Henry crater, Mars. GSA Bulletin. doi:10.1130/b35230.1

Paleo-Rock-Hosted Life on Earth and the Search on Mars: A Review and Strategy for Exploration

Onstott, T. C., Ehlmann, B. L., Sapers, H., Coleman, M., Ivarsson, M., Marlow, J. J., … Niles, P. (2019). Paleo-Rock-Hosted Life on Earth and the Search on Mars: A Review and Strategy for Exploration. Astrobiology. doi:10.1089/ast.2018.1960

A Limited Habitable Zone for Complex Life

Schwieterman, E. W., Reinhard, C. T., Olson, S. L., Harman, C. E., & Lyons, T. W. (2019). A Limited Habitable Zone for Complex Life. The Astrophysical Journal, 878(1), 19. doi:10.3847/1538-4357/ab1d52

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