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 2021An evolutionary system of mineralogy, Part IV: Planetesimal differentiation and impact mineralization (4566 to 4560 Ma)

Morrison, S. M., & Hazen, R. M. (2021). An evolutionary system of mineralogy, Part IV: Planetesimal differentiation and impact mineralization (4566 to 4560 Ma). American Mineralogist, 106(5), 730–761. doi:10.2138/am-2021-7632

Oxygen suppression of macroscopic multicellularity

Bozdag, G. O., Libby, E., Pineau, R., Reinhard, C. T., & Ratcliff, W. C. (2021). Oxygen suppression of macroscopic multicellularity. Nature Communications, 12(1), None. doi:10.1038/s41467-021-23104-0

Active microbial sulfate reduction in fluids of serpentinizing peridotites of the continental subsurface

Glombitza, C., Putman, L. I., Rempfert, K. R., Kubo, M. D., Schrenk, M. O., Templeton, A. S., & Hoehler, T. M. (2021). Active microbial sulfate reduction in fluids of serpentinizing peridotites of the continental subsurface. Communications Earth & Environment, 2(1), None. doi:10.1038/s43247-021-00157-z

Generalized Stoichiometry and Biogeochemistry for Astrobiological Applications

Kempes, C. P., Follows, M. J., Smith, H., Graham, H., House, C. H., & Levin, S. A. (2021). Generalized Stoichiometry and Biogeochemistry for Astrobiological Applications. Bulletin of Mathematical Biology, 83(7), None. doi:10.1007/s11538-021-00877-5

Concepts for future missions to search for technosignatures

Socas-Navarro, H., Haqq-Misra, J., Wright, J. T., Kopparapu, R., Benford, J., & Davis, R. (2021). Concepts for future missions to search for technosignatures. Acta Astronautica, 182, 446–453. doi:10.1016/j.actaastro.2021.02.029

Atomic-scale mixing between MgO and H2O in the deep interiors of water-rich planets

Kim, T., Chariton, S., Prakapenka, V., Pakhomova, A., Liermann, H-P., Liu, Z., … Lee, Y. (2021). Atomic-scale mixing between MgO and H2O in the deep interiors of water-rich planets. Nature Astronomy. doi:10.1038/s41550-021-01368-2

Broadband Stability of the Habitable Zone Planet Finder Fabry–Pérot Etalon Calibration System: Evidence for Chromatic Variation

Terrien, R. C., Ninan, J. P., Diddams, S. A., Mahadevan, S., Halverson, S., Bender, C., … Stefánsson, G. (2021). Broadband Stability of the Habitable Zone Planet Finder Fabry–Pérot Etalon Calibration System: Evidence for Chromatic Variation. The Astronomical Journal, 161(6), 252. doi:10.3847/1538-3881/abef68

Carbonate fabric diversity and environmental heterogeneity in the late Mesoproterozoic Era

Kah, L. C., & Bartley, J. K. (2021). Carbonate fabric diversity and environmental heterogeneity in the late Mesoproterozoic Era. Geological Magazine, None, 1–27. doi:10.1017/s0016756821000406

Preservation and Distributions of Covalently Bound Polyaromatic Hydrocarbons in Ancient Biogenic Kerogens and Insoluble Organic Macromolecules

Pehr, K., Bisquera, R., Bishop, A. N., Ossa Ossa, F., Meredith, W., Bekker, A., & Love, G. D. (2021). Preservation and Distributions of Covalently Bound Polyaromatic Hydrocarbons in Ancient Biogenic Kerogens and Insoluble Organic Macromolecules. Astrobiology. doi:10.1089/ast.2020.2338

TEM Analyses of Unusual Presolar Silicon Carbide: Insights into the Range of Circumstellar Dust Condensation Conditions

Singerling, S. A., Liu, N., Nittler, L. R., O’D. Alexander, C. M., & Stroud, R. M. (2021). TEM Analyses of Unusual Presolar Silicon Carbide: Insights into the Range of Circumstellar Dust Condensation Conditions. The Astrophysical Journal, 913(2), 90. doi:10.3847/1538-4357/abece2

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