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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May 2022Detection of Cosmic Fullerenes in the Almahata Sitta Meteorite: Are They an Interstellar Heritage?

Sabbah, H., Carlos, M., Jenniskens, P., Shaddad, M. H., Duprat, J., Goodrich, C. A., & Joblin, C. (2022). Detection of Cosmic Fullerenes in the Almahata Sitta Meteorite: Are They an Interstellar Heritage? The Astrophysical Journal, 931(2), 91. doi:10.3847/1538-4357/ac69dd

Water-Based Dynamic Depsipeptide Chemistry: Building Block Recycling and Oligomer Distribution Control Using Hydration–Dehydration Cycles

C, M., Frenkel-Pinter, M., Smith, K. H., Rivera-Santana, V. F., Sargon, A. B., Jacobson, K. C., … Hud, N. V. (2022). Water-Based Dynamic Depsipeptide Chemistry: Building Block Recycling and Oligomer Distribution Control Using Hydration–Dehydration Cycles. JACS Au. doi:10.1021/jacsau.2c00087

The Timing of Potential Last Nucleosynthetic Injections into the Protosolar Molecular Cloud Inferred from 41Ca–26Al Systematics of Bulk CAIs

Ku, Y., Petaev, M. I., & Jacobsen, S. B. (2022). The Timing of Potential Last Nucleosynthetic Injections into the Protosolar Molecular Cloud Inferred from <sup>41</sup>Ca–<sup>26</sup>Al Systematics of Bulk CAIs. The Astrophysical Journal Letters, 931(1), L13. doi:10.3847/2041-8213/ac666a

The Effect of Ocean Salinity on Climate and Its Implications for Earth's Habitability

Olson, S., Jansen, M. F., Abbot, D. S., Halevy, I., & Goldblatt, C. (2022). The Effect of Ocean Salinity on Climate and Its Implications for Earth's Habitability. Geophysical Research Letters, 49(10), None. doi:10.1029/2021gl095748

Evidence for benthic oxygen production in Neoarchean lacustrine stromatolites

Wilmeth, D. T., Lalonde, S. V., Berelson, W. M., Petryshyn, V., Celestian, A. J., Beukes, N. J., … Corsetti, F. A. (2022). Evidence for benthic oxygen production in Neoarchean lacustrine stromatolites. Geology. doi:10.1130/g49894.1

Volatile-bearing Partial Melts in the Lithospheric and Sub-Lithospheric Mantle on Earth and Other Rocky Planets

Dasgupta, R., Chowdhury, P., Eguchi, J., Sun, C., & Saha, S. (2022). Volatile-bearing Partial Melts in the Lithospheric and Sub-Lithospheric Mantle on Earth and Other Rocky Planets. Reviews in Mineralogy and Geochemistry, 87(1), 575–606. doi:10.2138/rmg.2022.87.12

Chemical Equilibrium between Cores, Mantles, and Atmospheres of Super-Earths and Sub-Neptunes and Implications for Their Compositions, Interiors, and Evolution

Schlichting, H. E., & Young, E. D. (2022). Chemical Equilibrium between Cores, Mantles, and Atmospheres of Super-Earths and Sub-Neptunes and Implications for Their Compositions, Interiors, and Evolution. The Planetary Science Journal, 3(5), 127. doi:10.3847/psj/ac68e6

April 2022Compositions of dissolved organic matter in the ice-covered waters above the Aurora hydrothermal vent system, Gakkel Ridge, Arctic Ocean

Sert, M. F., Niemann, H., Reeves, E. P., Granskog, M. A., Hand, K. P., Kekäläinen, T., … Gründger, F. (2022). Compositions of dissolved organic matter in the ice-covered waters above the Aurora hydrothermal vent system, Gakkel Ridge, Arctic Ocean. Biogeosciences, 19(8), 2101–2120. doi:10.5194/bg-19-2101-2022

Resurrected Rubisco suggests uniform carbon isotope signatures over geologic time

Kędzior, M., Garcia, A. K., Li, M., Taton, A., Adam, Z. R., Young, J. N., & Kaçar, B. (2022). Resurrected Rubisco suggests uniform carbon isotope signatures over geologic time. Cell Reports, 39(4), 110726. doi:10.1016/j.celrep.2022.110726

Mass Loss by Atmospheric Escape from Extremely Close-in Planets

Koskinen, T. T., Lavvas, P., Huang, C., Bergsten, G., Fernandes, R. B., & Young, M. E. (2022). Mass Loss by Atmospheric Escape from Extremely Close-in Planets. The Astrophysical Journal, 929(1), 52. doi:10.3847/1538-4357/ac4f45

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