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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October 2020Deep Water Cycling and the Multi‐Stage Cooling of the Earth

Seales, J., & Lenardic, A. (2020). Deep Water Cycling and the Multi‐Stage Cooling of the Earth. Geochemistry, Geophysics, Geosystems, 21(10), None. doi:10.1029/2020gc009106

September 2020The Resilience of Habitable Climates Around Circumbinary Stars

Wolf, E. T., Haqq‐Misra, J., Kopparapu, R., Fauchez, T. J., Welsh, W. F., Kane, S. R., … Eggl, S. (2020). The Resilience of Habitable Climates Around Circumbinary Stars. Journal of Geophysical Research: Planets, 125(9), None. doi:10.1029/2020je006576

Colliding in the Shadows of Giants: Planetesimal Collisions during the Growth and Migration of Gas Giants

Carter, P. J., & Stewart, S. T. (2020). Colliding in the Shadows of Giants: Planetesimal Collisions during the Growth and Migration of Gas Giants. The Planetary Science Journal, 1(2), 45. doi:10.3847/psj/abaecc

Where Are the Extrasolar Mercuries?

Doyle, A. E., Klein, B., Schlichting, H. E., & Young, E. D. (2020). Where Are the Extrasolar Mercuries? The Astrophysical Journal, 901(1), 10. doi:10.3847/1538-4357/abad9a

August 2020Low-Temperature Biosurfactants from Polar Microbes

Trudgeon, B., Dieser, M., Balasubramanian, N., Messmer, M., & Foreman, C. M. (2020). Low-Temperature Biosurfactants from Polar Microbes. Microorganisms, 8(8), 1183. doi:10.3390/microorganisms8081183

One gene, multiple ecological strategies: A biofilm regulator is a capacitor for sustainable diversity

Mhatre, E., Snyder, D. J., Sileo, E., Turner, C. B., Buskirk, S. W., Fernandez, N. L., … Cooper, V. S. (2020). One gene, multiple ecological strategies: A biofilm regulator is a capacitor for sustainable diversity. Proceedings of the National Academy of Sciences, 117(35), 21647–21657. doi:10.1073/pnas.2008540117

Constraining Ancient Magmatic Evolution on Mars Using Crystal Chemistry of Detrital Igneous Minerals in the Sedimentary Bradbury Group, Gale Crater, Mars

Payré, V., Siebach, K. L., Dasgupta, R., Udry, A., Rampe, E. B., & Morrison, S. M. (2020). Constraining Ancient Magmatic Evolution on Mars Using Crystal Chemistry of Detrital Igneous Minerals in the Sedimentary Bradbury Group, Gale Crater, Mars. Journal of Geophysical Research: Planets, 125(8), None. doi:10.1029/2020je006467

July 2020Detectability of Molecular Signatures on TRAPPIST-1e through Transmission Spectroscopy Simulated for Future Space-based Observatories

Pidhorodetska, D., Fauchez, T. J., Villanueva, G. L., Domagal-Goldman, S. D., & Kopparapu, R. K. (2020). Detectability of Molecular Signatures on TRAPPIST-1e through Transmission Spectroscopy Simulated for Future Space-based Observatories. The Astrophysical Journal Letters, 898(2), L33. doi:10.3847/2041-8213/aba4a1

The origins of nearly coplanar, non-resonant systems of close-in super-Earths

Esteves, L., Izidoro, A., Raymond, S. N., & Bitsch, B. (2020). The origins of nearly coplanar, non-resonant systems of close-in super-Earths. Monthly Notices of the Royal Astronomical Society, 497(2), 2493–2500. doi:10.1093/mnras/staa2112

The speciation of carbon, nitrogen, and water in magma oceans and its effect on volatile partitioning between major reservoirs of the Solar System rocky bodies

Grewal, D. S., Dasgupta, R., & Farnell, A. (2020). The speciation of carbon, nitrogen, and water in magma oceans and its effect on volatile partitioning between major reservoirs of the Solar System rocky bodies. Geochimica et Cosmochimica Acta, 280, 281–301. doi:10.1016/j.gca.2020.04.023

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