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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January 2021Reply to “A comment on ‘An evolutionary system of mineralogy: Proposal for a classification of planetary materials based on natural kind clustering’”

Hazen, R. M. (2021). Reply to “A comment on ‘An evolutionary system of mineralogy: Proposal for a classification of planetary materials based on natural kind clustering’”. American Mineralogist, 106(1), 154–156. doi:10.2138/am-2021-7773

A persistently low level of atmospheric oxygen in Earth’s middle age

Liu, X-M., Kah, L. C., Knoll, A. H., Cui, H., Wang, C., Bekker, A., & Hazen, R. M. (2021). A persistently low level of atmospheric oxygen in Earth’s middle age. Nature Communications, 12(1), None. doi:10.1038/s41467-020-20484-7

Refining the Transit-timing and Photometric Analysis of TRAPPIST-1: Masses, Radii, Densities, Dynamics, and Ephemerides

Agol, E., Dorn, C., Grimm, S. L., Turbet, M., Ducrot, E., Delrez, L., … Grootel, V. V. (2021). Refining the Transit-timing and Photometric Analysis of TRAPPIST-1: Masses, Radii, Densities, Dynamics, and Ephemerides. The Planetary Science Journal, 2(1), 1. doi:10.3847/psj/abd022

Water and Life: The Medium is the Message

Frenkel-Pinter, M., Rajaei, V., Glass, J. B., Hud, N. V., & Williams, L. D. (2021). Water and Life: The Medium is the Message. Journal of Molecular Evolution. doi:10.1007/s00239-020-09978-6

The Role of Glycerol and Its Derivatives in the Biochemistry of Living Organisms, and Their Prebiotic Origin and Significance in the Evolution of Life

Gull, M., & Pasek, M. A. (2021). The Role of Glycerol and Its Derivatives in the Biochemistry of Living Organisms, and Their Prebiotic Origin and Significance in the Evolution of Life. Catalysts, 11(1), 86. doi:10.3390/catal11010086

BEAST begins: Sample characteristics and survey performance of the B-star Exoplanet Abundance Study

Janson, M., Squicciarini, V., Delorme, P., Gratton, R., Bonnefoy, M., Reffert, S., … Al. (2021). BEAST begins: Sample characteristics and survey performance of the B-star Exoplanet Abundance Study. Astronomy & Astrophysics. doi:10.1051/0004-6361/202039683

Microbe-Mineral Interaction and Novel Proteins for Iron Oxide Mineral Reduction in the Hyperthermophilic Crenarchaeon Pyrodictium delaneyi

Kashyap, S., & Holden, J. F. (2021). Microbe-Mineral Interaction and Novel Proteins for Iron Oxide Mineral Reduction in the Hyperthermophilic Crenarchaeon Pyrodictium delaneyi. Applied and Environmental Microbiology. doi:10.1128/aem.02330-20

Complications in the ALMA Detection of Phosphine at Venus

Akins, A. B., Lincowski, A. P., Meadows, V. S., & Steffes, P. G. (2021). Complications in the ALMA Detection of Phosphine at Venus. The Astrophysical Journal, 907(2), L27. doi:10.3847/2041-8213/abd56a

Quantification of endospores in ancient permafrost using time-resolved terbium luminescence

Lalla, S. J., Kaneshige, K. R., Miller, D. R., Mackelprang, R., & Mogul, R. (2021). Quantification of endospores in ancient permafrost using time-resolved terbium luminescence. Analytical Biochemistry, 612, 113957. doi:10.1016/j.ab.2020.113957

DIFFERENTIAL WEATHERING OF DIAGENETIC CONCRETIONS AND THE FORMATION OF NEOPROTEROZOIC ANNULATED DISCOIDAL STRUCTURES

Schwid, M. F., Xiao, S., Nolan, M. R., & Zhihui, A. N. (2021). DIFFERENTIAL WEATHERING OF DIAGENETIC CONCRETIONS AND THE FORMATION OF NEOPROTEROZOIC ANNULATED DISCOIDAL STRUCTURES. PALAIOS, 36(1), 15–27. doi:10.2110/palo.2020.018

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