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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March 2025Four Sub-Earth Planets Orbiting Barnard’s Star from MAROON-X and ESPRESSO

Basant, R., Luque, R., Bean, J. L., Seifahrt, A., Brady, M., Zhao, L. L., … Stefánsson, G. (2025). Four Sub-Earth Planets Orbiting Barnard’s Star from MAROON-X and ESPRESSO. The Astrophysical Journal Letters, 982(1), L1. doi:10.3847/2041-8213/adb8d5

The Impact of Extended CO2 Cross Sections on Temperate Anoxic Planet Atmospheres

Broussard, W., Schwieterman, E.W., Sousa-Silva, C., Sanger-Johnson, G., Ranjan, S., & Venot, O. (2025) The Impact of Extended CO2 Cross Sections on Temperate Anoxic Planet Atmospheres. The Astrophysical Journal, 980(2). doi:10.3847/1538-4357/adaaf0

Bioverse: Giant Magellan Telescope and Extremely Large Telescope Direct Imaging and High-resolution Spectroscopy Assessment—Surveying Exo-Earth O2 and Testing the Habitable Zone Oxygen Hypothesis

K. Hardegree-Ullman, K.K., Apai, D., Haffert, S.Y., Schlecker, M., Kasper, M., Kammerer, J., Wagner, K. (2025) Bioverse: Giant Magellan Telescope and Extremely Large Telescope Direct Imaging and High-resolution Spectroscopy Assessment—Surveying Exo-Earth O2 and Testing the Habitable Zone Oxygen Hypothesis. The Astrophysical Journal, 169(3). doi:10.3847/1538-3881/adb02f

Genome duplication in a long-term multicellularity evolution experiment

Tong, K., Datta, S., Cheng, V., Haas, D. J., Gourisetti, S., Yopp, H. L., … Ratcliff, W. C. (2025). Genome duplication in a long-term multicellularity evolution experiment. Nature, 639(8055), 691–699. doi:10.1038/s41586-025-08689-6

February 2025Bias Correction of Satellite Precipitation Estimation Using Deep Neural Networks and Topographic Information Over the Western U.S.

Dao, V., Arellano, C. J., Nguyen, P., Almutlaq, F., Hsu, K., & Sorooshian, S. (2025). Bias Correction of Satellite Precipitation Estimation Using Deep Neural Networks and Topographic Information Over the Western U.S.. Journal of Geophysical Research: Atmospheres, 130(4), None. doi:10.1029/2024jd042181

Estimating Vegetation Optical Depth With Mobile GNSS Transmissiometry in Temperate Forests During SMAPVEX22

Ghosh, A., Farhad, M. M., Hoque, M. E., Boyd, D. R., Bourgeau-Chavez, L., Cosh, M. H., … Kurum, M. (2025). Estimating Vegetation Optical Depth With Mobile GNSS Transmissiometry in Temperate Forests During SMAPVEX22. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 18, 6451–6463. doi:10.1109/jstars.2025.3541182

Technical description and performance of the phase II version of the Keck Planet Imager and Characterizer

Jovanovic, N., Echeverri, D., Delorme, J-R., Finnerty, L., Schofield, T., Wang, J. J., … Beichman, C. (2025). Technical description and performance of the phase II version of the Keck Planet Imager and Characterizer. Journal of Astronomical Telescopes, Instruments, and Systems, 11(01), None. doi:10.1117/1.jatis.11.1.015005

A positive correlation between C/L-band radar backscatter and grain size of coarse alluvial deposits in the Mojave Desert

Maue, A. D., Burr, D. M., Thomson, B. J., Draper, J. R., & Jarquin, M. J. (2025). A positive correlation between C/L-band radar backscatter and grain size of coarse alluvial deposits in the Mojave Desert. Geological Society of America Bulletin. doi:10.1130/b37653.1

An Instrument Concept for High‐Resolution Observations of the Solar Wind Electron Strahl Using Coded Aperture Imaging

Reid, R. A., & Marshall, R. (2025). An Instrument Concept for High‐Resolution Observations of the Solar Wind Electron Strahl Using Coded Aperture Imaging. Earth and Space Science, 12(3), None. doi:10.1029/2024ea003814

Near-surface remote sensing applications for a robust, climate-smart measurement, monitoring, and information system (MMIS)

Runkle, B. R. K., Barnes, M., Dannenberg, M., Gamon, J. A., Magney, T., Pierrat, Z., … Woodgate, W. (2025). Near-surface remote sensing applications for a robust, climate-smart measurement, monitoring, and information system (MMIS). Carbon Management, 16(1), None. doi:10.1080/17583004.2025.2465361

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