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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May 2022Detection of Cosmic Fullerenes in the Almahata Sitta Meteorite: Are They an Interstellar Heritage?

Sabbah, H., Carlos, M., Jenniskens, P., Shaddad, M. H., Duprat, J., Goodrich, C. A., & Joblin, C. (2022). Detection of Cosmic Fullerenes in the Almahata Sitta Meteorite: Are They an Interstellar Heritage? The Astrophysical Journal, 931(2), 91. doi:10.3847/1538-4357/ac69dd

Water-Based Dynamic Depsipeptide Chemistry: Building Block Recycling and Oligomer Distribution Control Using Hydration–Dehydration Cycles

C, M., Frenkel-Pinter, M., Smith, K. H., Rivera-Santana, V. F., Sargon, A. B., Jacobson, K. C., … Hud, N. V. (2022). Water-Based Dynamic Depsipeptide Chemistry: Building Block Recycling and Oligomer Distribution Control Using Hydration–Dehydration Cycles. JACS Au. doi:10.1021/jacsau.2c00087

The Timing of Potential Last Nucleosynthetic Injections into the Protosolar Molecular Cloud Inferred from 41Ca–26Al Systematics of Bulk CAIs

Ku, Y., Petaev, M. I., & Jacobsen, S. B. (2022). The Timing of Potential Last Nucleosynthetic Injections into the Protosolar Molecular Cloud Inferred from <sup>41</sup>Ca–<sup>26</sup>Al Systematics of Bulk CAIs. The Astrophysical Journal Letters, 931(1), L13. doi:10.3847/2041-8213/ac666a

A Shared Prebiotic Formation of Neopterins and Guanine Nucleosides from Pyrimidine Bases

Menor‐Salván, C., Burcar, B. T., Bouza, M., Fialho, D. M., Fernández, F. M., & Hud, N. V. (2022). A Shared Prebiotic Formation of Neopterins and Guanine Nucleosides from Pyrimidine Bases. Chemistry – A European Journal. doi:10.1002/chem.202200714

The Effect of Ocean Salinity on Climate and Its Implications for Earth's Habitability

Olson, S., Jansen, M. F., Abbot, D. S., Halevy, I., & Goldblatt, C. (2022). The Effect of Ocean Salinity on Climate and Its Implications for Earth's Habitability. Geophysical Research Letters, 49(10), None. doi:10.1029/2021gl095748

Chemical Equilibrium between Cores, Mantles, and Atmospheres of Super-Earths and Sub-Neptunes and Implications for Their Compositions, Interiors, and Evolution

Schlichting, H. E., & Young, E. D. (2022). Chemical Equilibrium between Cores, Mantles, and Atmospheres of Super-Earths and Sub-Neptunes and Implications for Their Compositions, Interiors, and Evolution. The Planetary Science Journal, 3(5), 127. doi:10.3847/psj/ac68e6

Biofilms as agents of Ediacara-style fossilization

Slagter, S., Hao, W., Planavsky, N. J., Konhauser, K. O., & Tarhan, L. G. (2022). Biofilms as agents of Ediacara-style fossilization. Scientific Reports, 12(1), None. doi:10.1038/s41598-022-12473-1

Evidence for benthic oxygen production in Neoarchean lacustrine stromatolites

Wilmeth, D. T., Lalonde, S. V., Berelson, W. M., Petryshyn, V., Celestian, A. J., Beukes, N. J., … Corsetti, F. A. (2022). Evidence for benthic oxygen production in Neoarchean lacustrine stromatolites. Geology. doi:10.1130/g49894.1

April 2022Double ridge formation over shallow water sills on Jupiter’s moon Europa

Culberg, R., Schroeder, D. M., & Steinbrügge, G. (2022). Double ridge formation over shallow water sills on Jupiter’s moon Europa. Nature Communications, 13(1), None. doi:10.1038/s41467-022-29458-3

Mass Loss by Atmospheric Escape from Extremely Close-in Planets

Koskinen, T. T., Lavvas, P., Huang, C., Bergsten, G., Fernandes, R. B., & Young, M. E. (2022). Mass Loss by Atmospheric Escape from Extremely Close-in Planets. The Astrophysical Journal, 929(1), 52. doi:10.3847/1538-4357/ac4f45

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