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 2019Bacteriohopanepolyols 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

January 2019Phosphorus volatility in the early Solar nebula

Pasek, M. A. (2019). Phosphorus volatility in the early Solar nebula. Icarus, 317, 59–65. doi:10.1016/j.icarus.2018.07.011

Nucleosynthetic vanadium isotope heterogeneity of the early solar system recorded in chondritic meteorites

Nielsen, S. G., Auro, M., Righter, K., Davis, D., Prytulak, J., Wu, F., & Owens, J. D. (2019). Nucleosynthetic vanadium isotope heterogeneity of the early solar system recorded in chondritic meteorites. Earth and Planetary Science Letters, 505, 131–140. doi:10.1016/j.epsl.2018.10.029

Volcanically modulated pyrite burial and ocean–atmosphere oxidation

Olson, S. L., Ostrander, C. M., Gregory, D. D., Roy, M., Anbar, A. D., & Lyons, T. W. (2019). Volcanically modulated pyrite burial and ocean–atmosphere oxidation. Earth and Planetary Science Letters, 506, 417–427. doi:10.1016/j.epsl.2018.11.015

Microbial Biomarker Transition in High-Altitude Sinter Mounds From El Tatio (Chile) Through Different Stages of Hydrothermal Activity

Sanchez-Garcia, L., Fernandez-Martinez, M. A., GarcíA-Villadangos, M., Blanco, Y., Cady, S. L., Hinman, N., … Carrizo, D. (2019). Microbial Biomarker Transition in High-Altitude Sinter Mounds From El Tatio (Chile) Through Different Stages of Hydrothermal Activity. Frontiers in Microbiology, 9, None. doi:10.3389/fmicb.2018.03350

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