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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May 2020Mineralogy and density of Archean volcanic crust in the mantle transition zone

Ko, B., Prakapenka, V., Kunz, M., Prescher, C., Leinenweber, K., & Shim, S-H. (2020). Mineralogy and density of Archean volcanic crust in the mantle transition zone. Physics of the Earth and Planetary Interiors, None, 106490. doi:10.1016/j.pepi.2020.106490

The Prebiotic Provenance of Semi-Aqueous Solvents

Lago, J. L., Burcar, B. T., Hud, N. V., Febrian, R., Mehta, C., Bracher, P. J., … Pasek, M. A. (2020). The Prebiotic Provenance of Semi-Aqueous Solvents. Origins of Life and Evolution of Biospheres. doi:10.1007/s11084-020-09595-9

Prebiotic Syntheses of Noncanonical Nucleosides and Nucleotides

Fialho, D. M., Roche, T. P., & Hud, N. V. (2020). Prebiotic Syntheses of Noncanonical Nucleosides and Nucleotides. Chemical Reviews, 120(11), 4806–4830. doi:10.1021/acs.chemrev.0c00069

A coupled carbon-silicon cycle model over Earth history: Reverse weathering as a possible explanation of a warm mid-Proterozoic climate

Krissansen-Totton, J., & Catling, D. C. (2020). A coupled carbon-silicon cycle model over Earth history: Reverse weathering as a possible explanation of a warm mid-Proterozoic climate. Earth and Planetary Science Letters, 537, 116181. doi:10.1016/j.epsl.2020.116181

The Hypopiezotolerant Bacterium, Serratia liquefaciens, Failed to Grow in Mars Analog Soils under Simulated Martian Conditions at 7 hPa

Schuerger, A. C., Mickol, R. L., & Schwendner, P. (2020). The Hypopiezotolerant Bacterium, Serratia liquefaciens, Failed to Grow in Mars Analog Soils under Simulated Martian Conditions at 7 hPa. Life, 10(6), 77. doi:10.3390/life10060077

Streaming Instability in Turbulent Protoplanetary Disks

Umurhan, O. M., Estrada, P. R., & Cuzzi, J. N. (2020). Streaming Instability in Turbulent Protoplanetary Disks. The Astrophysical Journal, 895(1), 4. doi:10.3847/1538-4357/ab899d

Large Mass-Independent Oxygen Isotope Fractionations in Mid-Proterozoic Sediments: Evidence for a Low-Oxygen Atmosphere?

Planavsky, N. J., Reinhard, C. T., Isson, T. T., Ozaki, K., & Crockford, P. W. (2020). Large Mass-Independent Oxygen Isotope Fractionations in Mid-Proterozoic Sediments: Evidence for a Low-Oxygen Atmosphere? Astrobiology, 20(5), 628–636. doi:10.1089/ast.2019.2060

Properties of Sub-Neptune Atmospheres: TOI-270 System

Chouqar, J., Benkhaldoun, Z., Jabiri, A., Lustig-Yaeger, J., Soubkiou, A., & Szentgyorgyi, A. (2020). Properties of Sub-Neptune Atmospheres: TOI-270 System. Monthly Notices of the Royal Astronomical Society. doi:10.1093/mnras/staa1198

Hydrogenation reactions of carbon on Earth: Linking methane, margarine, and life

McGlynn, S. E., Glass, J. B., Johnson-Finn, K., Klein, F., Sanden, S. A., Schrenk, M. O., … Vitale-Brovarone, A. (2020). Hydrogenation reactions of carbon on Earth: Linking methane, margarine, and life. American Mineralogist, 105(5), 599–608. doi:10.2138/am-2020-6928ccbyncnd

The fate of organic carbon in marine sediments - New insights from recent data and analysis

LaRowe, D. E., Arndt, S., Bradley, J. A., Estes, E. R., Hoarfrost, A., Lang, S. Q., … Zhao, R. (2020). The fate of organic carbon in marine sediments - New insights from recent data and analysis. Earth-Science Reviews, 204, 103146. doi:10.1016/j.earscirev.2020.103146

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