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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March 2020Prebiotic Astrochemistry and the Formation of Molecules of Astrobiological Interest in Interstellar Clouds and Protostellar Disks

Sandford, S. A., Nuevo, M., Bera, P. P., & Lee, T. J. (2020). Prebiotic Astrochemistry and the Formation of Molecules of Astrobiological Interest in Interstellar Clouds and Protostellar Disks. Chemical Reviews, 120(11), 4616–4659. doi:10.1021/acs.chemrev.9b00560

Chemical Origins of Life: Its Engagement with Society

Krishnamurthy, R. (2020). Chemical Origins of Life: Its Engagement with Society. Trends in Chemistry. doi:10.1016/j.trechm.2020.02.011

Oceanic and atmospheric methane cycling in the cGENIE Earth system model

Reinhard, C. T., Olson, S., Kirtland Turner, S., Pälike, C., Kanzaki, Y., & Ridgwell, A. (2020). Oceanic and atmospheric methane cycling in the cGENIE Earth system model. None. doi:10.5194/gmd-2020-32

Is a Linear or a Walkabout Protocol More Efficient When Using a Rover to Choose Biologically Relevant Samples in a Small Region of Interest?

Yingst, R. A., Bartley, J. K., Chidsey, T. J., Cohen, B. A., Hynek, B. M., Kah, L. C., … Lotto, M. (2020). Is a Linear or a Walkabout Protocol More Efficient When Using a Rover to Choose Biologically Relevant Samples in a Small Region of Interest? Astrobiology, 20(3), 327–348. doi:10.1089/ast.2019.2090

Another Chemolithotrophic Metabolism Missing in Nature—Sulfur Comproportionation

Amend, J. P., Aronson, H. S., Macalady, J., & LaRowe, D. E. (2020). Another Chemolithotrophic Metabolism Missing in Nature—Sulfur Comproportionation. Environmental Microbiology. doi:10.1111/1462-2920.14982

Carbon Assimilation Strategies in Ultrabasic Groundwater: Clues from the Integrated Study of a Serpentinization-Influenced Aquifer

Seyler, L. M., Brazelton, W. J., McLean, C., Putman, L. I., Hyer, A., Kubo, M. D. Y., … Schrenk, M. O. (2020). Carbon Assimilation Strategies in Ultrabasic Groundwater: Clues from the Integrated Study of a Serpentinization-Influenced Aquifer. mSystems, 5(2), None. doi:10.1128/msystems.00607-19

Wide but not ubiquitous distribution of glendonite in the Doushantuo Formation, South China: Implications for Ediacaran climate

Wang, Z., Chen, C., Wang, J., Suess, E., Chen, X., Ma, X., … Xiao, S. (2020). Wide but not ubiquitous distribution of glendonite in the Doushantuo Formation, South China: Implications for Ediacaran climate. Precambrian Research, 338, 105586. doi:10.1016/j.precamres.2019.105586

February 2020Internal Structure and CO2 Reservoirs of Habitable Water Worlds

Marounina, N., & Rogers, L. A. (2020). Internal Structure and CO2 Reservoirs of Habitable Water Worlds. The Astrophysical Journal, 890(2), 107. doi:10.3847/1538-4357/ab68e4

Nitrogen isotope ratios trace high-pH conditions in a terrestrial Mars analog site

Stüeken, E. E., Tino, C., Arp, G., Jung, D., & Lyons, T. W. (2020). Nitrogen isotope ratios trace high-pH conditions in a terrestrial Mars analog site. Science Advances, 6(9), eaay3440. doi:10.1126/sciadv.aay3440

The evolving redox chemistry and bioavailability of vanadium in deep time

Moore, E. K., Hao, J., Spielman, S. J., & Yee, N. (2020). The evolving redox chemistry and bioavailability of vanadium in deep time. Geobiology, 18(2), 127–138. doi:10.1111/gbi.12375

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