NASA Astrobiology

March 2019Mineralogically zoned chondrules in ordinary chondrites as evidence for open system chondrule behaviour

Barosch, J., Hezel, D. C., Ebel, D. S., & Friend, P. (2019). Mineralogically zoned chondrules in ordinary chondrites as evidence for open system chondrule behaviour. Geochimica et Cosmochimica Acta, 249, 1–16. doi:10.1016/j.gca.2019.01.018

Insights into Europa's ocean composition derived from its surface expression

Johnson, P. V., Hodyss, R., Vu, T. H., & Choukroun, M. (2019). Insights into Europa's ocean composition derived from its surface expression. Icarus, 321, 857–865. doi:10.1016/j.icarus.2018.12.009

Obliquity-driven sculpting of exoplanetary systems

Millholland, S., & Laughlin, G. (2019). Obliquity-driven sculpting of exoplanetary systems. Nature Astronomy. doi:10.1038/s41550-019-0701-7

Mapping a systematic ribozyme fitness landscape reveals a frustrated evolutionary network for self-aminoacylating RNA

Pressman, A. D., Liu, Z., Janzen, E., Blanco, C., Müller, U. F., Joyce, G. F., … Chen, I. A. (2019). Mapping a systematic ribozyme fitness landscape reveals a frustrated evolutionary network for self-aminoacylating RNA. Journal of the American Chemical Society. doi:10.1021/jacs.8b13298

February 2019Fully oxygenated water columns over continental shelves before the Great Oxidation Event

Ostrander, C. M., Nielsen, S. G., Owens, J. D., Kendall, B., Gordon, G. W., Romaniello, S. J., & Anbar, A. D. (2019). Fully oxygenated water columns over continental shelves before the Great Oxidation Event. Nature Geoscience, 12(3), 186–191. doi:10.1038/s41561-019-0309-7

The Physical and Chemical Sedimentology of Two High-Altitude Acid Salars in Chile: Sedimentary Processes In An Extreme Environment

Benison, K. C. (2019). The Physical and Chemical Sedimentology of Two High-Altitude Acid Salars in Chile: Sedimentary Processes In An Extreme Environment. Journal of Sedimentary Research, 89(2), 147–167. doi:10.2110/jsr.2019.9

The case for a deep search for Earth’s Trojan asteroids

Malhotra, R. (2019). The case for a deep search for Earth’s Trojan asteroids. Nature Astronomy. doi:10.1038/s41550-019-0697-z

Nonlinear tidal dissipation in the subsurface oceans of Enceladus and other icy satellites

Hay, H. C. F. C., & Matsuyama, I. (2019). Nonlinear tidal dissipation in the subsurface oceans of Enceladus and other icy satellites. Icarus, 319, 68–85. doi:10.1016/j.icarus.2018.09.019

Terrestrial sources as the primary delivery mechanism of mercury to the oceans across the Toarcian Oceanic Anoxic Event (Early Jurassic)

Them, T. R., Jagoe, C. H., Caruthers, A. H., Gill, B. C., Grasby, S. E., Gröcke, D. R., … Owens, J. D. (2019). Terrestrial sources as the primary delivery mechanism of mercury to the oceans across the Toarcian Oceanic Anoxic Event (Early Jurassic). Earth and Planetary Science Letters, 507, 62–72. doi:10.1016/j.epsl.2018.11.029

How manganese empowered life with dioxygen (and vice versa)

Lingappa, U. F., Monteverde, D. R., Magyar, J. S., Valentine, J. S., & Fischer, W. W. (2019). How manganese empowered life with dioxygen (and vice versa). Free Radical Biology and Medicine. doi:10.1016/j.freeradbiomed.2019.01.036

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