NASA Astrobiology



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

NextPrevious

Go Explore

August 2022An authigenic response to Ediacaran surface oxidation: Remarkable micron-scale isotopic heterogeneity revealed by SIMS

Cui, H., Kitajima, K., Orland, I. J., Baele, J-M., Xiao, S., Kaufman, A. J., … Valley, J. W. (2022). An authigenic response to Ediacaran surface oxidation: Remarkable micron-scale isotopic heterogeneity revealed by SIMS. Precambrian Research, 377, 106676. doi:10.1016/j.precamres.2022.106676

July 2022Wet streaks in the McMurdo Dry Valleys, Antarctica: Implications for Recurring Slope Lineae on Mars

Toner, J. D., Sletten, R. S., Liu, L., Catling, D. C., Ming, D. W., Mushkin, A., & Lin, P-C. (2022). Wet streaks in the McMurdo Dry Valleys, Antarctica: Implications for Recurring Slope Lineae on Mars. Earth and Planetary Science Letters, 589, 117582. doi:10.1016/j.epsl.2022.117582

Methods and limitations of stable isotope measurements via direct elution of chromatographic peaks using gas chromotography-Orbitrap mass spectrometry

Zeichner, S. S., Wilkes, E. B., Hofmann, A. E., Chimiak, L., Sessions, A. L., Makarov, A., & Eiler, J. M. (2022). Methods and limitations of stable isotope measurements via direct elution of chromatographic peaks using gas chromotography-Orbitrap mass spectrometry. International Journal of Mass Spectrometry, 477, 116848. doi:10.1016/j.ijms.2022.116848

TEM analyses of in situ presolar grains from unequilibrated ordinary chondrite LL3.0 Semarkona

Singerling, S. A., Nittler, L. R., Barosch, J., Dobrică, E., Brearley, A. J., & Stroud, R. M. (2022). TEM analyses of in situ presolar grains from unequilibrated ordinary chondrite LL3.0 Semarkona. Geochimica et Cosmochimica Acta, 328, 130–152. doi:10.1016/j.gca.2022.05.007

Vanadium isotope fractionation during hydrothermal sedimentation: Implications for the vanadium cycle in the oceans

Wu, F., Owens, J. D., German, C. R., Mills, R. A., & Nielsen, S. G. (2022). Vanadium isotope fractionation during hydrothermal sedimentation: Implications for the vanadium cycle in the oceans. Geochimica et Cosmochimica Acta, 328, 168–184. doi:10.1016/j.gca.2022.05.002

Isotope velocimetry: Experimental and theoretical demonstration of the potential importance of gas flow for isotope fractionation during evaporation of protoplanetary material

Young, E. D., Macris, C. A., Tang, H., Hogan, A. A., & Shollenberger, Q. R. (2022). Isotope velocimetry: Experimental and theoretical demonstration of the potential importance of gas flow for isotope fractionation during evaporation of protoplanetary material. Earth and Planetary Science Letters, 589, 117575. doi:10.1016/j.epsl.2022.117575

June 2022Catalytic Synthesis of Polyribonucleic Acid on Prebiotic Rock Glasses

Jerome, C. A., Kim, H-J., Mojzsis, S. J., Benner, S. A., & Biondi, E. (2022). Catalytic Synthesis of Polyribonucleic Acid on Prebiotic Rock Glasses. Astrobiology, 22(6), 629–636. doi:10.1089/ast.2022.0027

Biofinder detects biological remains in Green River fish fossils from Eocene epoch at video speed

Misra, A. K., Rowley, S. J., Zhou, J., Acosta-Maeda, T. E., Dasilveira, L., Ravizza, G., … McKay, C. P. (2022). Biofinder detects biological remains in Green River fish fossils from Eocene epoch at video speed. Scientific Reports, 12(1), None. doi:10.1038/s41598-022-14410-8

Rover-mounted Hydrated Mineral Detector for Mars Exploration: A Preliminary Report

Sam Kim, S., Ng, E., Oh, J., Rahmat-Samii, Y., Cai, Y., & Paige, D. (2022). Rover-mounted Hydrated Mineral Detector for Mars Exploration: A Preliminary Report. The Planetary Science Journal, 3(6), 144. doi:10.3847/psj/ac6e5f

Microbial Protocols for Spacecraft: 1. Effects of Surface Texture, Low Pressure, and UV Irradiation on Recovery of Microorganisms from Surfaces

Schuerger, A. C. (2022). Microbial Protocols for Spacecraft: 1. Effects of Surface Texture, Low Pressure, and UV Irradiation on Recovery of Microorganisms from Surfaces. Astrobiology. doi:10.1089/ast.2021.0141

1/2/3/4/5/6...399