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 2019Rethinking CO Antibiosignatures in the Search for Life Beyond the Solar System

Schwieterman, E. W., Reinhard, C. T., Olson, S. L., Ozaki, K., Harman, C. E., Hong, P. K., & Lyons, T. W. (2019). Rethinking CO Antibiosignatures in the Search for Life Beyond the Solar System. The Astrophysical Journal, 874(1), 9. doi:10.3847/1538-4357/ab05e1

Protoplanetary Disk Masses from Radiative Transfer Modeling: A Case Study in Taurus

Ballering, N. P., & Eisner, J. A. (2019). Protoplanetary Disk Masses from Radiative Transfer Modeling: A Case Study in Taurus. The Astronomical Journal, 157(4), 144. doi:10.3847/1538-3881/ab0a56

Experimental determination of pyrite and molybdenite oxidation kinetics at nanomolar oxygen concentrations

Johnson, A. C., Romaniello, S. J., Reinhard, C. T., Gregory, D. D., Garcia-Robledo, E., Revsbech, N. P., … Anbar, A. D. (2019). Experimental determination of pyrite and molybdenite oxidation kinetics at nanomolar oxygen concentrations. Geochimica et Cosmochimica Acta, 249, 160–172. doi:10.1016/j.gca.2019.01.022

New insights into the heterogeneity of the Tagish Lake meteorite: Soluble organic compositions of variously altered specimens

Simkus, D. N., Aponte, J. C., Elsila, J. E., Hilts, R. W., McLain, H. L., & Herd, C. D. K. (2019). New insights into the heterogeneity of the Tagish Lake meteorite: Soluble organic compositions of variously altered specimens. Meteoritics & Planetary Science. doi:10.1111/maps.13276

The possibility of :CNH2+ within Titan’s atmosphere: Rovibrational analysis of :CNH2+ and :CCH2

Fortenberry, R. C., Lee, T. J., & Inostroza-Pino, N. (2019). The possibility of :CNH2+ within Titan’s atmosphere: Rovibrational analysis of :CNH2+ and :CCH2. Icarus, 321, 260–265. doi:10.1016/j.icarus.2018.11.026

Planetesimals to terrestrial planets: Collisional evolution amidst a dissipating gas disk

Walsh, K. J., & Levison, H. F. (2019). Planetesimals to terrestrial planets: Collisional evolution amidst a dissipating gas disk. Icarus. doi:10.1016/j.icarus.2019.03.031

An Astrobiology Strategy for the Search for Life in the Universe

, ., , ., , ., & , . (2019). An Astrobiology Strategy for the Search for Life in the Universe. None. doi:10.17226/25252

Strategic Investments in Instrumentation and Facilities for Extraterrestrial Sample Curation and Analysis

, ., , ., , ., & , . (2019). Strategic Investments in Instrumentation and Facilities for Extraterrestrial Sample Curation and Analysis. None. doi:10.17226/25312

The K Dwarf Advantage for Biosignatures on Directly Imaged Exoplanets

Arney, G. N. (2019). The K Dwarf Advantage for Biosignatures on Directly Imaged Exoplanets. The Astrophysical Journal, 873(1), L7. doi:10.3847/2041-8213/ab0651

Assessing the Acceptability of Science Operations Concepts and the Level of Mission Enhancement of Capabilities for Human Mars Exploration Extravehicular Activity

Beaton, K. H., Chappell, S. P., Abercromby, A. F. J., Miller, M. J., Kobs Nawotniak, S. E., Brady, A. L., … Lim, D. S. S. (2019). Assessing the Acceptability of Science Operations Concepts and the Level of Mission Enhancement of Capabilities for Human Mars Exploration Extravehicular Activity. Astrobiology, 19(3), 321–346. doi:10.1089/ast.2018.1912

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