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 2022Mantle Degassing Lifetimes through Galactic Time and the Maximum Age Stagnant-lid Rocky Exoplanets Can Support Temperate Climates

Unterborn, C. T., Foley, B. J., Desch, S. J., Young, P. A., Vance, G., Chiffelle, L., & Kane, S. R. (2022). Mantle Degassing Lifetimes through Galactic Time and the Maximum Age Stagnant-lid Rocky Exoplanets Can Support Temperate Climates. The Astrophysical Journal Letters, 930(1), L6. doi:10.3847/2041-8213/ac6596

MAESTRO: high speed, wide field microbial detection using deep uv spectroscopy

Bhartia, R., Hug, W. F., Reid, R., Nguyen, Q., Perry, R., Sijapati, K., & Reid, M. (2022). MAESTRO: high speed, wide field microbial detection using deep uv spectroscopy. Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XXIII. doi:10.1117/12.2619016

Limited Stability of Multicomponent Brines on the Surface of Mars

Chevrier, V. F., Fitting, A. B., & Rivera-Valentín, E. G. (2022). Limited Stability of Multicomponent Brines on the Surface of Mars. The Planetary Science Journal, 3(5), 125. doi:10.3847/psj/ac6603

Detection 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

A Shared Prebiotic Formation of Neopterins and Guanine Nucleosides from Pyrimidine Bases

Menor‐Salván, C., Burcar, B. T., Bouza, M., Fialho, D. M., Fernández, F. M., & Hud, N. V. (2022). A Shared Prebiotic Formation of Neopterins and Guanine Nucleosides from Pyrimidine Bases. Chemistry – A European Journal. doi:10.1002/chem.202200714

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

Biofilms as agents of Ediacara-style fossilization

Slagter, S., Hao, W., Planavsky, N. J., Konhauser, K. O., & Tarhan, L. G. (2022). Biofilms as agents of Ediacara-style fossilization. Scientific Reports, 12(1), None. doi:10.1038/s41598-022-12473-1

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

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