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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October 2020Absolute dating of the L-chondrite parent body breakup with high-precision U–Pb zircon geochronology from Ordovician limestone

Liao, S., Huyskens, M. H., Yin, Q-Z., & Schmitz, B. (2020). Absolute dating of the L-chondrite parent body breakup with high-precision U–Pb zircon geochronology from Ordovician limestone. Earth and Planetary Science Letters, 547, 116442. doi:10.1016/j.epsl.2020.116442

Early diagenesis of organic-rich marls under shifting suboxic to euxinic conditions: The lower Toarcian of the Bächental basin

Neumeister, S., Misch, D., Algeo, T. J., Gawlick, H-J., Gratzer, R., & Sachsenhofer, R. F. (2020). Early diagenesis of organic-rich marls under shifting suboxic to euxinic conditions: The lower Toarcian of the Bächental basin. Marine and Petroleum Geology, 120, 104513. doi:10.1016/j.marpetgeo.2020.104513

August 2020A tale of three taphonomic modes: The Ediacaran fossil Flabellophyton preserved in limestone, black shale, and sandstone

Wan, B., Chen, Z., Yuan, X., Pang, K., Tang, Q., Guan, C., … Xiao, S. (2020). A tale of three taphonomic modes: The Ediacaran fossil Flabellophyton preserved in limestone, black shale, and sandstone. Gondwana Research, 84, 296–314. doi:10.1016/j.gr.2020.04.003

Abiotic redox reactions in hydrothermal mixing zones: Decreased energy availability for the subsurface biosphere

McDermott, J. M., Sylva, S. P., Ono, S., German, C. R., & Seewald, J. S. (2020). Abiotic redox reactions in hydrothermal mixing zones: Decreased energy availability for the subsurface biosphere. Proceedings of the National Academy of Sciences, None, 202003108. doi:10.1073/pnas.2003108117

July 2020Seaweeds through time: Morphological and ecological analysis of Proterozoic and early Paleozoic benthic macroalgae

Bykova, N., LoDuca, S. T., Ye, Q., Marusin, V., Grazhdankin, D., & Xiao, S. (2020). Seaweeds through time: Morphological and ecological analysis of Proterozoic and early Paleozoic benthic macroalgae. Precambrian Research, None, 105875. doi:10.1016/j.precamres.2020.105875

Silicate-, Magnesium Ion-, and Urea-Induced Prebiotic Phosphorylation of Uridine via Pyrophosphate; Revisiting the Hot Drying Water Pool Scenario

Gull, M., Omran, A., Feng, T., & Pasek, M. A. (2020). Silicate-, Magnesium Ion-, and Urea-Induced Prebiotic Phosphorylation of Uridine via Pyrophosphate; Revisiting the Hot Drying Water Pool Scenario. Life, 10(8), 122. doi:10.3390/life10080122

Dynamical Packing in the Habitable Zone: The Case of Beta CVn

Kane, S. R., Turnbull, M. C., Fulton, B. J., Rosenthal, L. J., Howard, A. W., Isaacson, H., … Weiss, L. M. (2020). Dynamical Packing in the Habitable Zone: The Case of Beta CVn. The Astronomical Journal, 160(2), 81. doi:10.3847/1538-3881/ab9ffe

A Geologically Robust Procedure for Observing Rocky Exoplanets to Ensure that Detection of Atmospheric Oxygen Is a Modern Earth-like Biosignature

Lisse, C. M., Desch, S. J., Unterborn, C. T., Kane, S. R., Young, P. R., Hartnett, H. E., … Izenberg, N. R. (2020). A Geologically Robust Procedure for Observing Rocky Exoplanets to Ensure that Detection of Atmospheric Oxygen Is a Modern Earth-like Biosignature. The Astrophysical Journal, 898(1), L17. doi:10.3847/2041-8213/ab9b91

Meteorite evidence for partial differentiation and protracted accretion of planetesimals

Maurel, C., Bryson, J. F. J., Lyons, R. J., Ball, M. R., Chopdekar, R. V., Scholl, A., … Weiss, B. P. (2020). Meteorite evidence for partial differentiation and protracted accretion of planetesimals. Science Advances, 6(30), eaba1303. doi:10.1126/sciadv.aba1303

Comparison of multiple factors that impact the efficiency of non‐enzymatic DNA ligation: Key parameters for maximizing ligation rates and yields with carbodiimide activation

Obianyor, C., Newnam, G., Clifton, B., Grover, M., & Hud, N. V. (2020). Comparison of multiple factors that impact the efficiency of non‐enzymatic DNA ligation: Key parameters for maximizing ligation rates and yields with carbodiimide activation. ChemBioChem. doi:10.1002/cbic.202000335

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