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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December 2021Cyanobacteria and Algae Meet at the Limits of Their Habitat Ranges in Moderately Acidic Hot Springs

Fecteau, K. M., Boyd, E. S., Lindsay, M. R., Amenabar, M. J., Robinson, K. J., Debes, R. V., & Shock, E. L. (2021). Cyanobacteria and Algae Meet at the Limits of Their Habitat Ranges in Moderately Acidic Hot Springs. Journal of Geophysical Research: Biogeosciences, 127(1), None. doi:10.1029/2021jg006446

Putative fossil blood cells reinterpreted as diagenetic structures

Korneisel, D. E., Nesbitt, S. J., Werning, S., & Xiao, S. (2021). Putative fossil blood cells reinterpreted as diagenetic structures. PeerJ, 9, e12651. doi:10.7717/peerj.12651

Planning Implications Related to Sterilization-Sensitive Science Investigations Associated with Mars Sample Return (MSR)

Velbel, M. A., Cockell, C. S., Glavin, D. P., Marty, B., Regberg, A. B., Smith, A. L., … Zorzano, M-P. (2021). Planning Implications Related to Sterilization-Sensitive Science Investigations Associated with Mars Sample Return (MSR). Astrobiology. doi:10.1089/ast.2021.0113

New Perspectives on the Exoplanet Radius Gap from a Mathematica Tool and Visualized Water Equation of State

Zeng, L., Jacobsen, S. B., Hyung, E., Levi, A., Nava, C., Kirk, J., … Latham, D. W. (2021). New Perspectives on the Exoplanet Radius Gap from a Mathematica Tool and Visualized Water Equation of State. The Astrophysical Journal, 923(2), 247. doi:10.3847/1538-4357/ac3137

November 2021A Folding Insulator Defines Cryptic Domains in Tropomyosin

James, J. K., & Nanda, V. (2021). A Folding Insulator Defines Cryptic Domains in Tropomyosin. Journal of Molecular Biology, 433(23), 167281. doi:10.1016/j.jmb.2021.167281

The Release of Energy During Protein Synthesis at Ultramafic‐Hosted Submarine Hydrothermal Ecosystems

Dick, J. M., & Shock, E. L. (2021). The Release of Energy During Protein Synthesis at Ultramafic‐Hosted Submarine Hydrothermal Ecosystems. Journal of Geophysical Research: Biogeosciences, 126(11), None. doi:10.1029/2021jg006436

Concurrent Prebiotic Formation of Nucleoside‐Amidophosphates and Nucleoside‐Triphosphates Potentiates Transition from Abiotic to Biotic Polymerization

Lin, H., Jiménez, E. I., Arriola, J. T., Müller, U. F., & Krishnamurthy, R. (2021). Concurrent Prebiotic Formation of Nucleoside‐Amidophosphates and Nucleoside‐Triphosphates Potentiates Transition from Abiotic to Biotic Polymerization. Angewandte Chemie International Edition. doi:10.1002/anie.202113625

The Peptidyl Transferase Center: a Window to the Past

Tirumalai, M. R., Rivas, M., Tran, Q., & Fox, G. E. (2021). The Peptidyl Transferase Center: a Window to the Past. Microbiology and Molecular Biology Reviews. doi:10.1128/mmbr.00104-21

Tuning DNA Supramolecular Polymers by the Addition of Small, Functionalized Nucleobase Mimics

Lachance-Brais, C., Hennecker, C. D., Alenaizan, A., Luo, X., Toader, V., Taing, M., … Sleiman, H. F. (2021). Tuning DNA Supramolecular Polymers by the Addition of Small, Functionalized Nucleobase Mimics. Journal of the American Chemical Society. doi:10.1021/jacs.1c08972

Long-read sequencing reveals increased occurrence of genomic variants and adenosine methylation in Bacillus pumilus SAFR-032 after long-duration flight exposure onboard the International Space Station

Waters, S. M., Ledford, S. M., Wacker, A., Verma, S., Serda, B., McKaig, J., … Smith, D. J. (2021). Long-read sequencing reveals increased occurrence of genomic variants and adenosine methylation in Bacillus pumilus SAFR-032 after long-duration flight exposure onboard the International Space Station. International Journal of Astrobiology, None, 1–10. doi:10.1017/s1473550421000343

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