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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June 2019Organometallic compounds as carriers of extraterrestrial cyanide in primitive meteorites

Smith, K. E., House, C. H., Arevalo, R. D., Dworkin, J. P., & Callahan, M. P. (2019). Organometallic compounds as carriers of extraterrestrial cyanide in primitive meteorites. Nature Communications, 10(1), None. doi:10.1038/s41467-019-10866-x

Archaea dominate oxic subseafloor communities over multimillion-year time scales

Vuillemin, A., Wankel, S. D., Coskun, Ö. K., Magritsch, T., Vargas, S., Estes, E. R., … Orsi, W. D. (2019). Archaea dominate oxic subseafloor communities over multimillion-year time scales. Science Advances, 5(6), eaaw4108. doi:10.1126/sciadv.aaw4108

The O–O Bonding and Hydrogen Storage in the Pyrite-type PtO2

Chen, H., Zhou, S., Morgan, D., Prakapenka, V., Greenberg, E., Leinenweber, K., & Shim, S-H. (2019). The O–O Bonding and Hydrogen Storage in the Pyrite-type PtO2. Inorganic Chemistry. doi:10.1021/acs.inorgchem.9b00046

Slime travelers: Early evidence of animal mobility and feeding in an organic mat world

Evans, S. D., Gehling, J. G., & Droser, M. L. (2019). Slime travelers: Early evidence of animal mobility and feeding in an organic mat world. Geobiology. doi:10.1111/gbi.12351

Implications of K, Cu and Zn isotopes for the formation of tektites

Jiang, Y., Chen, H., Fegley, B., Lodders, K., Hsu, W., Jacobsen, S. B., & Wang, K. (2019). Implications of K, Cu and Zn isotopes for the formation of tektites. Geochimica et Cosmochimica Acta. doi:10.1016/j.gca.2019.06.003

The Gemini Planet Imager Exoplanet Survey: Giant Planet and Brown Dwarf Demographics from 10 to 100 au

Nielsen, E. L., De Rosa, R. J., Macintosh, B., Wang, J. J., Ruffio, J-B., Chiang, E., … Wolff, S. (2019). The Gemini Planet Imager Exoplanet Survey: Giant Planet and Brown Dwarf Demographics from 10 to 100 au. The Astronomical Journal, 158(1), 13. doi:10.3847/1538-3881/ab16e9

Ultrafast flavin/tryptophan radical pair kinetics in a magnetically sensitive artificial protein

Bialas, C., Barnard, D., Auman, D., McBride, R., Jarocha, L., Hore, P. J., … Moser, C. C. (2019). Ultrafast flavin/tryptophan radical pair kinetics in a magnetically sensitive artificial protein. Physical Chemistry Chemical Physics. doi:10.1039/c9cp01916b

A light, chondritic xenolith in the Murchison (CM) chondrite – Formation by fluid-assisted percolation during metasomatism?

Kerraouch, I., Ebert, S., Patzek, M., Bischoff, A., Zolensky, M. E., Pack, A., … Le, L. (2019). A light, chondritic xenolith in the Murchison (CM) chondrite – Formation by fluid-assisted percolation during metasomatism? Geochemistry. doi:10.1016/j.chemer.2019.06.002

Optimization of Replication, Transcription, and Translation in a Semi-Synthetic Organism

Feldman, A. W., Dien, V. T., Karadeema, R. J., Fischer, E. C., You, Y., Anderson, B. A., … Romesberg, F. E. (2019). Optimization of Replication, Transcription, and Translation in a Semi-Synthetic Organism. Journal of the American Chemical Society. doi:10.1021/jacs.9b02075

Planetary protection technologies for planetary science instruments, spacecraft, and missions: Report of the NASA Planetary Protection Technology Definition Team (PPTDT)

Rummel, J. D., & Pugel, D. E. (2019). Planetary protection technologies for planetary science instruments, spacecraft, and missions: Report of the NASA Planetary Protection Technology Definition Team (PPTDT). Life Sciences in Space Research. doi:10.1016/j.lssr.2019.06.003

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