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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September 2021Ediacara growing pains: modular addition and development in Dickinsonia costata

Evans, S. D., Gehling, J. G., Erwin, D. H., & Droser, M. L. (2021). Ediacara growing pains: modular addition and development in Dickinsonia costata. Paleobiology, None, 1–16. doi:10.1017/pab.2021.31

Anaerobic 3-methylhopanoid production by an acidophilic photosynthetic purple bacterium

Mayer, M. H., Parenteau, M. N., Kempher, M. L., Madigan, M. T., Jahnke, L. L., & Welander, P. V. (2021). Anaerobic 3-methylhopanoid production by an acidophilic photosynthetic purple bacterium. Archives of Microbiology. doi:10.1007/s00203-021-02561-7

Mechanisms for gas-phase molecular formation of neutral formaldehyde (H2CO) in cold astrophysical regions

Ramal-Olmedo, J. C., Menor-Salván, C. A., & Fortenberry, R. C. (2021). Mechanisms for gas-phase molecular formation of neutral formaldehyde (H2CO) in cold astrophysical regions. Astronomy & Astrophysics. doi:10.1051/0004-6361/202141616

Exposure of cyanobacterium Nostoc sp. to the Mars-like stratosphere environment

Ye, T., Wang, B., Li, C., Bian, P., Chen, L., & Wang, G. (2021). Exposure of cyanobacterium Nostoc sp. to the Mars-like stratosphere environment. Journal of Photochemistry and Photobiology B: Biology, None, 112307. doi:10.1016/j.jphotobiol.2021.112307

A Metamorphic Origin for Europa's Ocean

Melwani Daswani, M., Vance, S. D., Mayne, M. J., & Glein, C. R. (2021). A Metamorphic Origin for Europa's Ocean. Geophysical Research Letters, 48(18), None. doi:10.1029/2021gl094143

Dynamic interplay of biogeochemical C, S, and Ba cycles in response to Shuram oxygenation event

Cui, H., Kaufman, A. J., Xiao, S., Zhou, C., Zhu, M., Cao, M., … Guan, C. (2021). Dynamic interplay of biogeochemical C, S, and Ba cycles in response to Shuram oxygenation event. Journal of the Geological Society, None, jgs2021–081. doi:10.1144/jgs2021-081

Exploring Tidal Obliquity Variations with SMERCURY-T

Kreyche, S. M., Barnes, J. W., Quarles, B. L., & Chambers, J. E. (2021). Exploring Tidal Obliquity Variations with SMERCURY-T. The Planetary Science Journal, 2(5), 187. doi:10.3847/psj/ac1ce6

A Comprehensive Revisit of Select Galileo/NIMS Observations of Europa

Mishra, I., Lewis, N., Lunine, J., Hand, K. P., Helfenstein, P., Carlson, R. W., & MacDonald, R. J. (2021). A Comprehensive Revisit of Select Galileo/NIMS Observations of Europa. The Planetary Science Journal, 2(5), 183. doi:10.3847/psj/ac1acb

Tracking Short-term Variations in the Haze Distribution of Titan’s Atmosphere with SINFONI VLT

Nichols-Fleming, F., Corlies, P., Hayes, A. G., Ádámkovics, M., Rojo, P., Rodriguez, S., … Soderblom, J. M. (2021). Tracking Short-term Variations in the Haze Distribution of Titan’s Atmosphere with SINFONI VLT. The Planetary Science Journal, 2(5), 180. doi:10.3847/psj/abffd7

Multiplex suppression of four quadruplet codons via tRNA directed evolution

DeBenedictis, E. A., Carver, G. D., Chung, C. Z., Söll, D., & Badran, A. H. (2021). Multiplex suppression of four quadruplet codons via tRNA directed evolution. Nature Communications, 12(1), None. doi:10.1038/s41467-021-25948-y

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