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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February 2024The COSPAR Planetary Protection Policy for missions to Icy Worlds: A review of history, current scientific knowledge, and future directions

Doran, P. T., Hayes, A., Grasset, O., Coustenis, A., Prieto-Ballesteros, O., Hedman, N., … Schmidt, B. (2024). The COSPAR Planetary Protection Policy for missions to Icy Worlds: A review of history, current scientific knowledge, and future directions. Life Sciences in Space Research. doi:10.1016/j.lssr.2024.02.002

Magnesium silicate chimneys at the Strytan hydrothermal field, Iceland, as analogues for prebiotic chemistry at alkaline submarine hydrothermal vents on the early Earth

Gutiérrez-Ariza, C., Barge, L. M., Ding, Y., Cardoso, S. S. S., McGlynn, S. E., Nakamura, R., … Cartwright, J. H. E. (2024). Magnesium silicate chimneys at the Strytan hydrothermal field, Iceland, as analogues for prebiotic chemistry at alkaline submarine hydrothermal vents on the early Earth. Progress in Earth and Planetary Science, 11(1), None. doi:10.1186/s40645-023-00603-w

Oxygenation of the Proterozoic Earth's surface: An evolving story

Kendall, B., & Ostrander, C. M. (2025). Oxygenation of the Proterozoic Earth's surface: An evolving story. Treatise on Geochemistry, None, 297–336. doi:10.1016/b978-0-323-99762-1.00058-9

Delivery of Organic Matter to the Early Earth

Martins, Z., & Pasek, M. A. (2024). Delivery of Organic Matter to the Early Earth. Elements, 20(1), 19–23. doi:10.2138/gselements.20.1.19

Axisymmetric High Spot Coverage on Exoplanet Host HD 189733 A

Narrett, I. S., Rackham, B. V., & Wit, J. d. (2024). Axisymmetric High Spot Coverage on Exoplanet Host HD 189733 A. The Astronomical Journal, 167(3), 107. doi:10.3847/1538-3881/ad1f6c

Resolved ALMA observations of water in the inner astronomical units of the HL Tau disk

Facchini, S., Testi, L., Humphreys, E., Vander Donckt, M., Isella, A., Wrzosek, R., … Vlemmings, W. (2024). Resolved ALMA observations of water in the inner astronomical units of the HL Tau disk. Nature Astronomy, 8(5), 587–595. doi:10.1038/s41550-024-02207-w

Near-Infrared Vibrational Frequencies of HCN, HNC, and CN in N2 and Ar Ice Matrices

Fayolle, R. C., Johnson, P. V., Hodyss, R., Zhang, X., Sander, S. P. (2024) Near-Infrared Vibrational Frequencies of HCN, HNC, and CN in N2 and Ar Ice Matrices. ACS Earth and Space Chemistry. doi: 10.1021/acsearthspacechem.3c00287

Atmospheric Loss in Giant Impacts Depends on Preimpact Surface Conditions

Lock, S. J., & Stewart, S. T. (2024). Atmospheric Loss in Giant Impacts Depends on Preimpact Surface Conditions. The Planetary Science Journal, 5(2), 28. doi:10.3847/psj/ad0b16

Small‐Scale Overturn of High‐Ti Cumulates Promoted by the Long Lifetime of the Lunar Magma Ocean

Maurice, M., Tosi, N., & Hüttig, C. (2024). Small‐Scale Overturn of High‐Ti Cumulates Promoted by the Long Lifetime of the Lunar Magma Ocean. Journal of Geophysical Research: Planets, 129(2), None. doi:10.1029/2023je008060

The H-poor nature of incompletely melted planetesimals: The view from acapulcoites and lodranites

Peterson, L. D., Newcombe, M. E., Alexander, C. M.O'D., Wang, J., Nielsen, S. G. (2024) The H-poor nature of incompletely melted planetesimals: The view from acapulcoites and lodranites. Geochimica et Cosmochimica Acta. doi: 10.1016/j.gca.2024.02.002

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