NASA Astrobiology

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A volcanically active planet is shown in closeup at the left side of the image with glowing eruptions and lines of lava on the surface. To the right and in the distance is a faint blue glowing ball representing the more massive planet in the system.

Sixteen frames from Voyager 1's flyby of Jupiter in 1979 were merged to create this image. Jupiter's Great Red Spot is visible in the center. Jupiter's moon Europa can be seen in the foreground at the bottom left of the image.

The frame is a horizontal rainbow of color on a grid. Shadows of molecules can be seen through the light as well as the jagged peaks and troughs of spectral lines.

Fizzy Super Earths and Lava Worlds“Fizzy Super-Earths: Impacts of Magma Composition on the Bulk Density and Structure of Lava Worlds.” in The Astrophysical Journal.01/03

Identifying Hydrothermal Activity on Icy Ocean Worlds“Ethene-ethanol ratios as potential indicators of hydrothermal activity at Enceladus, Europa, and other icy ocean worlds.” In Icarus.02/03

NASA Raman Spectroscopic Database"The NASA Raman spectroscopic database: Ramdb version 1.00.” In Icarus.03/03

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August 2019Rapid classification of TESS planet candidates with convolutional neural networks

Osborn, H. P., Ansdell, M., Ioannou, Y., Sasdelli, M., Angerhausen, D., Caldwell, D., … Smith, J. C. (2019). Rapid classification of TESS planet candidates with convolutional neural networks. Astronomy & Astrophysics. doi:10.1051/0004-6361/201935345

TRAPPIST-1 Habitable Atmosphere Intercomparison (THAI). Motivations and protocol

Fauchez, T., Turbet, M., Wolf, E. T., Boutle, I., Way, M. J., Del Genio, A. D., … Domagal Goldman, S. D. (2019). TRAPPIST-1 Habitable Atmosphere Intercomparison (THAI). Motivations and protocol. None. doi:10.5194/gmd-2019-166

Mineralogy, petrography, and oxygen and aluminum-magnesium isotope systematics of grossite-bearing refractory inclusions

Krot, A. N., Nagashima, K., Simon, S. B., Ma, C., Connolly, H. C., Huss, G. R., … Bizzarro, M. (2019). Mineralogy, petrography, and oxygen and aluminum-magnesium isotope systematics of grossite-bearing refractory inclusions. Geochemistry, None, 125529. doi:10.1016/j.chemer.2019.08.001

Thermal Infrared Imaging of MWC 758 with the Large Binocular Telescope: Planetary-driven Spiral Arms?

Wagner, K., Stone, J. M., Spalding, E., Apai, D., Dong, R., Ertel, S., … Webster, R. (2019). Thermal Infrared Imaging of MWC 758 with the Large Binocular Telescope: Planetary-driven Spiral Arms? The Astrophysical Journal, 882(1), 20. doi:10.3847/1538-4357/ab32ea

In situ Ion Irradiation and Heating Experiments in the Transmission Electron Microscope: Simulations of Dust Processing in Circumstellar Environments

Haenecour, P., Thompson, M. S., Zega, T. J., Howe, J. Y., & Chen, W-Y. (2019). In situ Ion Irradiation and Heating Experiments in the Transmission Electron Microscope: Simulations of Dust Processing in Circumstellar Environments. Microscopy and Microanalysis, 25(S2), 2454–2455. doi:10.1017/s143192761901300x

Hidden Concepts in the History and Philosophy of Origins-of-Life Studies: a Workshop Report

Mariscal, C., Barahona, A., Aubert-Kato, N., Aydinoglu, A. U., Bartlett, S., Cárdenas, M. L., … James Cleaves, H. (2019). Hidden Concepts in the History and Philosophy of Origins-of-Life Studies: a Workshop Report. Origins of Life and Evolution of Biospheres. doi:10.1007/s11084-019-09580-x

Constraining the Solar System's Debris Disk with In Situ New Horizons Measurements from the Edgeworth–Kuiper Belt

Poppe, A. R., Lisse, C. M., Piquette, M., Zemcov, M., Horányi, M., James, D., … Stern, S. A. (2019). Constraining the Solar System's Debris Disk with In Situ New Horizons Measurements from the Edgeworth–Kuiper Belt. The Astrophysical Journal, 881(1), L12. doi:10.3847/2041-8213/ab322a

Aberration-Corrected STEM Analysis of Impurities in Cosmic Nanodiamonds and Synthetic Analogs

Stroud, R. M. (2019). Aberration-Corrected STEM Analysis of Impurities in Cosmic Nanodiamonds and Synthetic Analogs. Microscopy and Microanalysis, 25(S2), 1736–1737. doi:10.1017/s1431927619009413

Cosmic dust fluxes in the atmospheres of Earth, Mars, and Venus

Carrillo-Sánchez, J. D., Gómez-Martín, J. C., Bones, D. L., Nesvorný, D., Pokorný, P., Benna, M., … Plane, J. M. C. (2019). Cosmic dust fluxes in the atmospheres of Earth, Mars, and Venus. Icarus, None, 113395. doi:10.1016/j.icarus.2019.113395

Chromium isotopes in marine hydrothermal sediments

Bauer, K. W., Cole, D. B., Asael, D., Francois, R., Calvert, S. E., Pouton, S. W., … Crowe, S. A. (2019). Chromium isotopes in marine hydrothermal sediments. Chemical Geology, None, 119286. doi:10.1016/j.chemgeo.2019.119286

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