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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February 2019Highly siderophile element and 187 Re-187 Os isotopic systematics of ungrouped achondrite Northwest Africa 7325: Evidence for complex planetary processes

Archer, G. J., Walker, R. J., & Irving, A. J. (2019). Highly siderophile element and 187 Re-187 Os isotopic systematics of ungrouped achondrite Northwest Africa 7325: Evidence for complex planetary processes. Meteoritics & Planetary Science. doi:10.1111/maps.13261

Volatile distributions in and on the Moon revealed by Cu and Fe isotopes in the ‘Rusty Rock’ 66095

Day, J. M. D., Sossi, P. A., Shearer, C. K., & Moynier, F. (2019). Volatile distributions in and on the Moon revealed by Cu and Fe isotopes in the ‘Rusty Rock’ 66095. Geochimica et Cosmochimica Acta. doi:10.1016/j.gca.2019.02.036

Genetics, crystallization sequence, and age of the South Byron Trio iron meteorites: New insights to carbonaceous chondrite (CC) type parent bodies

Hilton, C. D., Bermingham, K. R., Walker, R. J., & McCoy, T. J. (2019). Genetics, crystallization sequence, and age of the South Byron Trio iron meteorites: New insights to carbonaceous chondrite (CC) type parent bodies. Geochimica et Cosmochimica Acta. doi:10.1016/j.gca.2019.02.035

A novel organic-rich meteoritic clast from the outer solar system

Kebukawa, Y., Ito, M., Zolensky, M. E., Greenwood, R. C., Rahman, Z., Suga, H., … Kobayashi, K. (2019). A novel organic-rich meteoritic clast from the outer solar system. Scientific Reports, 9(1), None. doi:10.1038/s41598-019-39357-1

Bacteriohopanepolyols across environmental gradients in Lake Vanda, Antarctica

Matys, E. D., Mackey, T., Grettenberger, C., Mueller, E., Sumner, D. Y., Hawes, I., & Summons, R. E. (2019). Bacteriohopanepolyols across environmental gradients in Lake Vanda, Antarctica. Geobiology. doi:10.1111/gbi.12335

A GROUND SUPPORT BIOBARRIER (GSB) FOR RECONTAMINATION PREVENTION

Patel, N., Dean, Z., Salinas, Y., Shiraishi, L., & Newlin, L. (2019). A GROUND SUPPORT BIOBARRIER (GSB) FOR RECONTAMINATION PREVENTION. Life Sciences in Space Research. doi:10.1016/j.lssr.2019.02.002

A Lunar Microbial Survival Model for Predicting the Forward Contamination of the Moon

Schuerger, A. C., Moores, J. E., Smith, D. J., & Reitz, G. (2019). A Lunar Microbial Survival Model for Predicting the Forward Contamination of the Moon. Astrobiology. doi:10.1089/ast.2018.1952

HAZMAT. V. The Ultraviolet and X-Ray Evolution of K Stars

Richey-Yowell, T., Shkolnik, E. L., Schneider, A. C., Osby, E., Barman, T., & Meadows, V. S. (2019). HAZMAT. V. The Ultraviolet and X-Ray Evolution of K Stars. The Astrophysical Journal, 872(1), 17. doi:10.3847/1538-4357/aafa74

Cr isotope systematics in the Connecticut River estuary

Sun, Z., Wang, X., & Planavsky, N. (2019). Cr isotope systematics in the Connecticut River estuary. Chemical Geology, 506, 29–39. doi:10.1016/j.chemgeo.2018.12.034

Subsurface Microbial Habitats in an Extreme Desert Mars-Analog Environment

Warren-Rhodes, K. A., Lee, K. C., Archer, S. D. J., Cabrol, N., Ng-Boyle, L., Wettergreen, D., … , . (2019). Subsurface Microbial Habitats in an Extreme Desert Mars-Analog Environment. Frontiers in Microbiology, 10, None. doi:10.3389/fmicb.2019.00069

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