NASA Astrobiology

October 2018Morphological and isotopic changes of heterocystous cyanobacteria in response to N2 partial pressure

Silverman, S. N., Kopf, S. H., Bebout, B. M., Gordon, R., & Som, S. M. (2018). Morphological and isotopic changes of heterocystous cyanobacteria in response to N2 partial pressure. Geobiology. doi:10.1111/gbi.12312

Transcriptomic responses of Serratia liquefaciens cells grown under simulated Martian conditions of low temperature, low pressure, and CO2-enriched anoxic atmosphere

Fajardo-Cavazos, P., Morrison, M. D., Miller, K. M., Schuerger, A. C., & Nicholson, W. L. (2018). Transcriptomic responses of Serratia liquefaciens cells grown under simulated Martian conditions of low temperature, low pressure, and CO2-enriched anoxic atmosphere. Scientific Reports, 8(1), None. doi:10.1038/s41598-018-33140-4

Abiotic O2 Levels on Planets around F, G, K, and M Stars: Effects of Lightning-produced Catalysts in Eliminating Oxygen False Positives

Harman, C. E., Felton, R., Hu, R., Domagal-Goldman, S. D., Segura, A., Tian, F., & Kasting, J. F. (2018). Abiotic O2 Levels on Planets around F, G, K, and M Stars: Effects of Lightning-produced Catalysts in Eliminating Oxygen False Positives. The Astrophysical Journal, 866(1), 56. doi:10.3847/1538-4357/aadd9b

A 2 R ⊕ Planet Orbiting the Bright Nearby K Dwarf Wolf 503

Peterson, M. S., Benneke, B., David, T. J., Dressing, C. D., Ciardi, D., Crossfield, I. J. M., … Isaacson, H. (2018). A 2 R ⊕ Planet Orbiting the Bright Nearby K Dwarf Wolf 503. The Astronomical Journal, 156(5), 188. doi:10.3847/1538-3881/aaddfe

Reassessing the origin and chronology of the unique achondrite Asuka 881394: Implications for distribution of 26Al in the early Solar System

Wimpenny, J., Sanborn, M. E., Koefoed, P., Cooke, I. R., Stirling, C., Amelin, Y., & Yin, Q-Z. (2018). Reassessing the origin and chronology of the unique achondrite Asuka 881394: Implications for distribution of 26Al in the early Solar System. Geochimica et Cosmochimica Acta. doi:10.1016/j.gca.2018.10.006

Origin of Earth's Water: Chondritic Inheritance Plus Nebular Ingassing and Storage of Hydrogen in the Core

Wu, J., Desch, S. J., Schaefer, L., Elkins-Tanton, L. T., Pahlevan, K., & Buseck, P. R. (2018). Origin of Earth's Water: Chondritic Inheritance Plus Nebular Ingassing and Storage of Hydrogen in the Core. Journal of Geophysical Research: Planets. doi:10.1029/2018je005698

Pervasive aerobic nitrogen cycling in the surface ocean across the Paleoproterozoic Era

Kipp, M. A., Stüeken, E. E., Yun, M., Bekker, A., & Buick, R. (2018). Pervasive aerobic nitrogen cycling in the surface ocean across the Paleoproterozoic Era. Earth and Planetary Science Letters, 500, 117–126. doi:10.1016/j.epsl.2018.08.007

Effects of core formation on the Hf–W isotopic composition of the Earth and dating of the Moon-forming impact

Fischer, R. A., & Nimmo, F. (2018). Effects of core formation on the Hf–W isotopic composition of the Earth and dating of the Moon-forming impact. Earth and Planetary Science Letters, 499, 257–265. doi:10.1016/j.epsl.2018.07.030

Development of a Reflective Spatial Heterodyne Spectrometer (SHS) for Spaceflight Applications from the Extreme UV to Near IR

Harris, W., & Corliss, J. (2018). Development of a Reflective Spatial Heterodyne Spectrometer (SHS) for Spaceflight Applications from the Extreme UV to Near IR. Light, Energy and the Environment 2018 (E2, FTS, HISE, SOLAR, SSL). doi:10.1364/fts.2018.fm3b.3

Quantifying the missing sink for global organic carbon burial during a Cretaceous oceanic anoxic event

Owens, J. D., Lyons, T. W., & Lowery, C. M. (2018). Quantifying the missing sink for global organic carbon burial during a Cretaceous oceanic anoxic event. Earth and Planetary Science Letters, 499, 83–94. doi:10.1016/j.epsl.2018.07.021

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