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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June 2022Leveraging Earth Hydrosphere Science in the Search for Life on Ocean Worlds

Hoehler, T., , ., Bowman, J., Craft, K., Willis, P., & Winebrenner, D. (2022). Leveraging Earth Hydrosphere Science in the Search for Life on Ocean Worlds. Oceanography. doi:10.5670/oceanog.2021.412

Correlative SIP-FISH-Raman-SEM-NanoSIMS links identity, morphology, biochemistry, and physiology of environmental microbes

Schaible, G. A., Kohtz, A. J., Cliff, J., & Hatzenpichler, R. (2022). Correlative SIP-FISH-Raman-SEM-NanoSIMS links identity, morphology, biochemistry, and physiology of environmental microbes. ISME Communications, 2(1), None. doi:10.1038/s43705-022-00134-3

Moderately High Obliquity Promotes Biospheric Oxygenation

Barnett, M. N., & Olson, S. L. (2022). Moderately High Obliquity Promotes Biospheric Oxygenation. The Planetary Science Journal, 3(6), 132. doi:10.3847/psj/ac6dce

An Integrative Analysis of the Rich Planetary System of the Nearby Star e Eridani: Ideal Targets for Exoplanet Imaging and Biosignature Searches

Basant, R., Dietrich, J., & Apai, D. (2022). An Integrative Analysis of the Rich Planetary System of the Nearby Star e Eridani: Ideal Targets for Exoplanet Imaging and Biosignature Searches. The Astronomical Journal, 164(1), 12. doi:10.3847/1538-3881/ac6f58

A Multiwavelength Study of the Highly Asymmetrical Debris Disk around HD 111520

Crotts, K. A., Draper, Z. H., Matthews, B. C., Duchêne, G., Esposito, T. M., Wilner, D., … Stapelfeldt, K. (2022). A Multiwavelength Study of the Highly Asymmetrical Debris Disk around HD 111520. The Astrophysical Journal, 932(1), 23. doi:10.3847/1538-4357/ac6c86

The importance of silicate vapour in determining the structure, radii, and envelope mass fractions of sub-Neptunes

Misener, W., & Schlichting, H. E. (2022). The importance of silicate vapour in determining the structure, radii, and envelope mass fractions of sub-Neptunes. Monthly Notices of the Royal Astronomical Society, 514(4), 6025–6037. doi:10.1093/mnras/stac1732

Inferring Late-stage Enrichment of Exoplanet Atmospheres from Observed Interstellar Comets

Seligman, D. Z., Becker, J., Adams, F. C., Feinstein, A. D., & Rogers, L. A. (2022). Inferring Late-stage Enrichment of Exoplanet Atmospheres from Observed Interstellar Comets. The Astrophysical Journal Letters, 933(1), L7. doi:10.3847/2041-8213/ac786e

Variability in Titan’s Mesospheric HCN and Temperature Structure as Observed by ALMA

Thelen, A. E., Nixon, C. A., Cosentino, R. G., Cordiner, M. A., Teanby, N. A., Newman, C. E., … Charnley, S. B. (2022). Variability in Titan’s Mesospheric HCN and Temperature Structure as Observed by ALMA. The Planetary Science Journal, 3(6), 146. doi:10.3847/psj/ac7050

On-sky Reconstruction of Keck Primary Mirror Piston Offsets Using a Zernike Wavefront Sensor

Van Kooten, M. A. M., Ragland, S., Jensen-Clem, R., Xin, Y., Delorme, J-R., & Kent Wallace, J. (2022). On-sky Reconstruction of Keck Primary Mirror Piston Offsets Using a Zernike Wavefront Sensor. The Astrophysical Journal, 932(2), 109. doi:10.3847/1538-4357/ac6ba2

Biotic induction and microbial ecological dynamics of Oceanic Anoxic Event 2

Connock, G. T., Owens, J. D., & Liu, X-L. (2022). Biotic induction and microbial ecological dynamics of Oceanic Anoxic Event 2. Communications Earth & Environment, 3(1), None. doi:10.1038/s43247-022-00466-x

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