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 2020Draft Genome Sequence of Desulfofundulus thermobenzoicus subsp. thermosyntrophicus DSM 14055, a Moderately Thermophilic Sulfate Reducer

Bertran, E., Ward, L. M., & Johnston, D. T. (2020). Draft Genome Sequence of Desulfofundulus thermobenzoicus subsp. thermosyntrophicus DSM 14055, a Moderately Thermophilic Sulfate Reducer. Microbiology Resource Announcements, 9(3), None. doi:10.1128/mra.01416-19

Polyesters as a Model System for Building Primitive Biologies from Non-Biological Prebiotic Chemistry

Chandru, Mamajanov, Cleaves, & Jia (2020). Polyesters as a Model System for Building Primitive Biologies from Non-Biological Prebiotic Chemistry. Life, 10(1), 6. doi:10.3390/life10010006

Lifetimes of interstellar dust from cosmic ray exposure ages of presolar silicon carbide

Heck, P. R., Greer, J., Kööp, L., Trappitsch, R., Gyngard, F., Busemann, H., … Wieler, R. (2020). Lifetimes of interstellar dust from cosmic ray exposure ages of presolar silicon carbide. Proceedings of the National Academy of Sciences, None, 201904573. doi:10.1073/pnas.1904573117

On impact and volcanism across the Cretaceous-Paleogene boundary

Hull, P. M., Bornemann, A., Penman, D. E., Henehan, M. J., Norris, R. D., Wilson, P. A., … Zachos, J. C. (2020). On impact and volcanism across the Cretaceous-Paleogene boundary. Science, 367(6475), 266–272. doi:10.1126/science.aay5055

The Bridgmanite–Akimotoite–Majorite Triple Point Determined in Large Volume Press and Laser-Heated Diamond Anvil Cell

Kulka, B. L., Dolinschi, J. D., Leinenweber, K. D., Prakapenka, V. B., & Shim, S-H. (2020). The Bridgmanite–Akimotoite–Majorite Triple Point Determined in Large Volume Press and Laser-Heated Diamond Anvil Cell. Minerals, 10(1), 67. doi:10.3390/min10010067

Simulating Mars Drilling Mission for Searching for Life: Ground-Truthing Lipids and Other Complex Microbial Biomarkers in the Iron-Sulfur Rich Río Tinto Analog

Sánchez-GarcíA, L., Fernández-Martínez, M. A., Moreno-Paz, M., Carrizo, D., GarcíA-Villadangos, M., Manchado, J. M., … Parro, V. (2020). Simulating Mars Drilling Mission for Searching for Life: Ground-Truthing Lipids and Other Complex Microbial Biomarkers in the Iron-Sulfur Rich Río Tinto Analog. Astrobiology. doi:10.1089/ast.2019.2101

Exploring Microbial Activity in Low-pressure Environments

Schwendner, P., & Schuerger, A. C. (2020). Exploring Microbial Activity in Low-pressure Environments. Current Issues in Molecular Biology, None, 163–196. doi:10.21775/cimb.038.163

Nanopore Sequencing of an Expanded Genetic Alphabet Reveals High-Fidelity Replication of a Predominantly Hydrophobic Unnatural Base Pair

Ledbetter, M. P., Craig, J. M., Karadeema, R. J., Noakes, M. T., Kim, H. C., Abell, S. J., … Romesberg, F. E. (2020). Nanopore Sequencing of an Expanded Genetic Alphabet Reveals High-Fidelity Replication of a Predominantly Hydrophobic Unnatural Base Pair. Journal of the American Chemical Society, 142(5), 2110–2114. doi:10.1021/jacs.9b09808

Quantifying the Bayesian Evidence for a Planet in Radial Velocity Data

Nelson, B. E., Ford, E. B., Buchner, J., Cloutier, R., Díaz, R. F., Faria, J. P., … Rukdee, S. (2020). Quantifying the Bayesian Evidence for a Planet in Radial Velocity Data. The Astronomical Journal, 159(2), 73. doi:10.3847/1538-3881/ab5190

Sensitive probing of exoplanetary oxygen via mid-infrared collisional absorption

Fauchez, T. J., Villanueva, G. L., Schwieterman, E. W., Turbet, M., Arney, G., Pidhorodetska, D., … Domagal-Goldman, S. D. (2020). Sensitive probing of exoplanetary oxygen via mid-infrared collisional absorption. Nature Astronomy, 4(4), 372–376. doi:10.1038/s41550-019-0977-7

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