NASA Astrobiology

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Emerging Trends in Comet Taxonomy. “Emerging trends and a comet taxonomy based on the volatile chemistry measured in thirty comets with high-resolution infrared spectroscopy between 1997 and 2013.” in Icarus

Cycles of Glaciation on Ancient Mars. “Climate Cycling on Early Mars Caused by the Carbonate-Silicate Cycle” in Earth and Planetary Astrophysics.

Methane Muted: How Did Early Earth Stay Warm?. “A proper accounting of biogeochemical cycles in the oceans reveals that methane has a much more powerful foe than oxygen.” in PNAS

Emerging Trends in Comet Taxonomy“Emerging trends and a comet taxonomy based on the volatile chemistry measured in thirty comets with high-resolution infrared spectroscopy between 1997 and 2013.” in Icarus01/03

Cycles of Glaciation on Ancient Mars“Climate Cycling on Early Mars Caused by the Carbonate-Silicate Cycle” in Earth and Planetary Astrophysics.02/03

Methane Muted: How Did Early Earth Stay Warm?“A proper accounting of biogeochemical cycles in the oceans reveals that methane has a much more powerful foe than oxygen.” in PNAS03/03

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December 2021Putative 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

November 2021The 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

Solar wind contributions to Earth’s oceans

Daly, L., Lee, M. R., Hallis, L. J., Ishii, H. A., Bradley, J. P., Bland, P. A., … Thompson, M. S. (2021). Solar wind contributions to Earth’s oceans. Nature Astronomy, 5(12), 1275–1285. doi:10.1038/s41550-021-01487-w

Infiltration metasomatism of the Allende coarse-grained calcium-aluminum-rich inclusions

Krot, A. N., Petaev, M. I., & Nagashima, K. (2021). Infiltration metasomatism of the Allende coarse-grained calcium-aluminum-rich inclusions. Progress in Earth and Planetary Science, 8(1), None. doi:10.1186/s40645-021-00437-4

Effects of Hydrogen on the Phase Relations in Fe‐FeS at Pressures of Mars‐Sized Bodies

Piet, H., Leinenweber, K., Greenberg, E., Prakapenka, V. B., & Shim, S. ‐. (2021). Effects of Hydrogen on the Phase Relations in Fe‐FeS at Pressures of Mars‐Sized Bodies. Journal of Geophysical Research: Planets, 126(11), None. doi:10.1029/2021je006942

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