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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December 2019The Exoplanet Population Observation Simulator. II. Population Synthesis in the Era of Kepler

Mulders, G. D., Mordasini, C., Pascucci, I., Ciesla, F. J., Emsenhuber, A., & Apai, D. (2019). The Exoplanet Population Observation Simulator. II. Population Synthesis in the Era of Kepler. The Astrophysical Journal, 887(2), 157. doi:10.3847/1538-4357/ab5187

Terrestrial Hot Spring Systems: Introduction

Des Marais, D. J., & Walter, M. R. (2019). Terrestrial Hot Spring Systems: Introduction. Astrobiology, 19(12), 1419–1432. doi:10.1089/ast.2018.1976

Are Inner Disc Misalignments Common? ALMA Reveals an Isotropic Outer Disc Inclination Distribution for Young Dipper Stars

Ansdell, M., Gaidos, E., Hedges, C., Tazzari, M., Kraus, A. L., Wyatt, M. C., … Rizzuto, A. C. (2019). Are Inner Disc Misalignments Common? ALMA Reveals an Isotropic Outer Disc Inclination Distribution for Young Dipper Stars. Monthly Notices of the Royal Astronomical Society. doi:10.1093/mnras/stz3361

Reversible Transformation of a Supramolecular Hydrogel by Redox Switching of Methylene Blue—A Noncovalent Chain Stopper

Karunakaran, S. C., Cafferty, B. J., Jain, K. S., Schuster, G. B., & Hud, N. V. (2019). Reversible Transformation of a Supramolecular Hydrogel by Redox Switching of Methylene Blue—A Noncovalent Chain Stopper. ACS Omega. doi:10.1021/acsomega.9b02785

The Oligomerization of Glucose Under Plausible Prebiotic Conditions

Li, Z., Li, L., McKenna, K. R., Schmidt, M., Pollet, P., Gelbaum, L., … Liotta, C. L. (2019). The Oligomerization of Glucose Under Plausible Prebiotic Conditions. Origins of Life and Evolution of Biospheres. doi:10.1007/s11084-019-09588-3

Dynamic biogeochemistry of the particulate sulfur pool in a buoyant deep-sea hydrothermal plume

Cron, B., Sheik, C., Kafantaris, F-C., Druschel, G. K., Seewald, J. S., German, C. R., … Toner, B. M. (2019). Dynamic biogeochemistry of the particulate sulfur pool in a buoyant deep-sea hydrothermal plume. ACS Earth and Space Chemistry. doi:10.1021/acsearthspacechem.9b00214

Mare basalt meteorites, magnesian-suite rocks and KREEP reveal loss of zinc during and after lunar formation

Day, J. M. D., Van Kooten, E. M. M. E., Hofmann, B. A., & Moynier, F. (2019). Mare basalt meteorites, magnesian-suite rocks and KREEP reveal loss of zinc during and after lunar formation. Earth and Planetary Science Letters, None, 115998. doi:10.1016/j.epsl.2019.115998

Combined Focused Ion Beam-Ultramicrotomy Method for TEM Specimen Preparation of Porous Fine-Grained Materials

Ohtaki, K. K., Ishii, H. A., & Bradley, J. P. (2019). Combined Focused Ion Beam-Ultramicrotomy Method for TEM Specimen Preparation of Porous Fine-Grained Materials. Microscopy and Microanalysis, None, 1–6. doi:10.1017/s1431927619015186

Surface resistance to SSVs and SIRVs in pilin deletions of Sulfolobus islandicus

Rowland, E. F., Bautista, M. A., Zhang, C., & Whitaker, R. J. (2019). Surface resistance to SSVs and SIRVs in pilin deletions of Sulfolobus islandicus. Molecular Microbiology. doi:10.1111/mmi.14435

Subglacial meltwater supported aerobic marine habitats during Snowball Earth

Lechte, M. A., Wallace, M. W., Hood, A. v. S., Li, W., Jiang, G., Halverson, G. P., … Planavsky, N. J. (2019). Subglacial meltwater supported aerobic marine habitats during Snowball Earth. Proceedings of the National Academy of Sciences, None, 201909165. doi:10.1073/pnas.1909165116

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