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 2021The future lifespan of Earth’s oxygenated atmosphere

Ozaki, K., & Reinhard, C. T. (2021). The future lifespan of Earth’s oxygenated atmosphere. Nature Geoscience, 14(3), 138–142. doi:10.1038/s41561-021-00693-5

A 200-million-year delay in permanent atmospheric oxygenation

Poulton, S. W., Bekker, A., Cumming, V. M., Zerkle, A. L., Canfield, D. E., & Johnston, D. T. (2021). A 200-million-year delay in permanent atmospheric oxygenation. Nature. doi:10.1038/s41586-021-03393-7

To cool is to keep: residual H/He atmospheres of super-Earths and sub-Neptunes

Misener, W., & Schlichting, H. E. (2021). To cool is to keep: residual H/He atmospheres of super-Earths and sub-Neptunes. Monthly Notices of the Royal Astronomical Society, 503(4), 5658–5674. doi:10.1093/mnras/stab895

February 2021Geological Factors Impacted Cadmium Availability and use as an Alternative Cofactor for Zinc in the Carbon Fixation Pathways of Marine Diatoms

Srivastava, N., Spielman, S. J., Morrison, S. M., & Moore, E. K. (2021). Geological Factors Impacted Cadmium Availability and use as an Alternative Cofactor for Zinc in the Carbon Fixation Pathways of Marine Diatoms. Journal of Geophysical Research: Biogeosciences, 126(2), None. doi:10.1029/2020jg005966

Orogenic quiescence in Earth’s middle age

Tang, M., Chu, X., Hao, J., & Shen, B. (2021). Orogenic quiescence in Earth’s middle age. Science, 371(6530), 728–731. doi:10.1126/science.abf1876

The Deep-Time Digital Earth program: data-driven discovery in geosciences

Wang, C., Hazen, R. M., Cheng, Q., Stephenson, M. H., Zhou, C., Fox, P., … Schiffries, C. M. (2021). The Deep-Time Digital Earth program: data-driven discovery in geosciences. National Science Review, 8(9), None. doi:10.1093/nsr/nwab027

MARSBOx: Fungal and Bacterial Endurance From a Balloon-Flown Analog Mission in the Stratosphere

Cortesão, M., Siems, K., Koch, S., Beblo-Vranesevic, K., Rabbow, E., Berger, T., … Moeller, R. (2021). MARSBOx: Fungal and Bacterial Endurance From a Balloon-Flown Analog Mission in the Stratosphere. Frontiers in Microbiology, 12, None. doi:10.3389/fmicb.2021.601713

An Improved Hertzsprung–Russell Diagram for the Orion Trapezium Cluster

Fang, M., Kim, J. S., Pascucci, I., & Apai, D. (2021). An Improved Hertzsprung–Russell Diagram for the Orion Trapezium Cluster. The Astrophysical Journal, 908(1), 49. doi:10.3847/1538-4357/abcec8

Comparison of the Murchison CM2 and Allende CV3 chondrites

Fendrich, K. V., & Ebel, D. S. (2021). Comparison of the Murchison CM2 and Allende CV3 chondrites. Meteoritics & Planetary Science. doi:10.1111/maps.13623

Cultivation and characterization of snowbound microorganisms from the South Pole

Hayward, M. K., Dewey, E. D., Shaffer, K. N., Huntington, A. M., Burchell, B. M., Stokes, L. M., … Matthew Sattley, W. (2021). Cultivation and characterization of snowbound microorganisms from the South Pole. Extremophiles. doi:10.1007/s00792-021-01218-z

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