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 2021Thallium behavior during high-pressure metamorphism in the Western Alps, Europe

Rader, S. T., Gaschnig, R. M., Newby, S. M., Bebout, G. E., Mirakian, M. J., & Owens, J. D. (2021). Thallium behavior during high-pressure metamorphism in the Western Alps, Europe. Chemical Geology, 579, 120349. doi:10.1016/j.chemgeo.2021.120349

One-billion-year-old epibionts highlight symbiotic ecological interactions in early eukaryote evolution

Tang, Q., Pang, K., Li, G., Chen, L., Yuan, X., & Xiao, S. (2021). One-billion-year-old epibionts highlight symbiotic ecological interactions in early eukaryote evolution. Gondwana Research, 97, 22–33. doi:10.1016/j.gr.2021.05.008

August 2021Vanadium isotope evidence for expansive ocean euxinia during the appearance of early Ediacara biota

Fan, H., Ostrander, C. M., Auro, M., Wen, H., & Nielsen, S. G. (2021). Vanadium isotope evidence for expansive ocean euxinia during the appearance of early Ediacara biota. Earth and Planetary Science Letters, 567, 117007. doi:10.1016/j.epsl.2021.117007

July 2021Behavior of the Mo, Tl, and U isotope systems during differentiation in the Kilauea Iki lava lake

Gaschnig, R. M., Rader, S. T., Reinhard, C. T., Owens, J. D., Planavsky, N., Wang, X., … Helz, R. (2021). Behavior of the Mo, Tl, and U isotope systems during differentiation in the Kilauea Iki lava lake. Chemical Geology, 574, 120239. doi:10.1016/j.chemgeo.2021.120239

June 2021Bayesian analysis of Enceladus’s plume data to assess methanogenesis

Affholder, A., Guyot, F., Sauterey, B., Ferrière, R., & Mazevet, S. (2021). Bayesian analysis of Enceladus’s plume data to assess methanogenesis. Nature Astronomy. doi:10.1038/s41550-021-01372-6

The Energetic Potential for Undiscovered Manganese Metabolisms in Nature

LaRowe, D. E., Carlson, H. K., & Amend, J. P. (2021). The Energetic Potential for Undiscovered Manganese Metabolisms in Nature. Frontiers in Microbiology, 12, None. doi:10.3389/fmicb.2021.636145

Geochemistry and Cosmochemistry of potassium stable isotopes

Wang, K., Li, W., Li, S., Tian, Z., Koefoed, P., & Zheng, X-Y. (2021). Geochemistry and Cosmochemistry of potassium stable isotopes. Geochemistry, None, 125786. doi:10.1016/j.chemer.2021.125786

Draft Genome Sequence of Shewanella sp. Strain BF02_Schw, Isolated from Blood Falls, a Feature Where Subglacial Brine Discharges to the Surface of Taylor Glacier, Antarctica

Boles, B. W., Murdoch, R. W., Ohlsson, I., & Mikucki, J. A. (2021). Draft Genome Sequence of Shewanella sp. Strain BF02_Schw, Isolated from Blood Falls, a Feature Where Subglacial Brine Discharges to the Surface of Taylor Glacier, Antarctica. Microbiology Resource Announcements, 10(22), None. doi:10.1128/mra.01141-20

Stellar Winds Drive Strong Variations in Exoplanet Evaporative Outflow Patterns and Transit Absorption Signatures

Harbach, L. M., Moschou, S. P., Garraffo, C., Drake, J. J., Alvarado-Gómez, J. D., Cohen, O., & Fraschetti, F. (2021). Stellar Winds Drive Strong Variations in Exoplanet Evaporative Outflow Patterns and Transit Absorption Signatures. The Astrophysical Journal, 913(2), 130. doi:10.3847/1538-4357/abf63a

May 2021The Proterozoic macrofossil Tawuia as a coenocytic eukaryote and a possible macroalga

Tang, Q., Pang, K., Li, G., Chen, L., Yuan, X., Sharma, M., & Xiao, S. (2021). The Proterozoic macrofossil Tawuia as a coenocytic eukaryote and a possible macroalga. Palaeogeography, Palaeoclimatology, Palaeoecology, None, 110485. doi:10.1016/j.palaeo.2021.110485

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