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 2019De novo origins of multicellularity in response to predation

Herron, M. D., Borin, J. M., Boswell, J. C., Walker, J., Chen, I-C., Knox, C. A., … Ratcliff, W. C. (2019). De novo origins of multicellularity in response to predation. Scientific Reports, 9(1), None. doi:10.1038/s41598-019-39558-8

How manganese empowered life with dioxygen (and vice versa)

Lingappa, U. F., Monteverde, D. R., Magyar, J. S., Valentine, J. S., & Fischer, W. W. (2019). How manganese empowered life with dioxygen (and vice versa). Free Radical Biology and Medicine. doi:10.1016/j.freeradbiomed.2019.01.036

Mid‐Proterozoic ferruginous conditions reflect post‐depositional processes

Slotznick, S. P., Webb, S. M., Kirschvink, J. L., & Fischer, W. W. (2019). Mid‐Proterozoic ferruginous conditions reflect post‐depositional processes. Geophysical Research Letters. doi:10.1029/2018gl081496

A Small Molecule with PAH Vibrational Properties and a Detectable Rotational Spectrum: c-(C)C3H2, Cyclopropenylidenyl Carbene

Agbaglo, D., Lee, T. J., Thackston, R., & Fortenberry, R. C. (2019). A Small Molecule with PAH Vibrational Properties and a Detectable Rotational Spectrum: c-(C)C3H2, Cyclopropenylidenyl Carbene. The Astrophysical Journal, 871(2), 236. doi:10.3847/1538-4357/aaf85a

A Near-coplanar Stellar Flyby of the Planet Host Star HD 106906

De Rosa, R. J., & Kalas, P. (2019). A Near-coplanar Stellar Flyby of the Planet Host Star HD 106906. The Astronomical Journal, 157(3), 125. doi:10.3847/1538-3881/ab0109

The Planet Formation Potential around a 45 Myr Old Accreting M Dwarf

Flaherty, K., Hughes, A. M., Mamajek, E. E., & Murphy, S. J. (2019). The Planet Formation Potential around a 45 Myr Old Accreting M Dwarf. The Astrophysical Journal, 872(1), 92. doi:10.3847/1538-4357/aaf794

Predicting the Extreme Ultraviolet Radiation Environment of Exoplanets around Low-mass Stars: The TRAPPIST-1 System

Peacock, S., Barman, T., Shkolnik, E. L., Hauschildt, P. H., & Baron, E. (2019). Predicting the Extreme Ultraviolet Radiation Environment of Exoplanets around Low-mass Stars: The TRAPPIST-1 System. The Astrophysical Journal, 871(2), 235. doi:10.3847/1538-4357/aaf891

The Transit Light Source Effect. II. The Impact of Stellar Heterogeneity on Transmission Spectra of Planets Orbiting Broadly Sun-like Stars

Rackham, B. V., Apai, D., & Giampapa, M. S. (2019). The Transit Light Source Effect. II. The Impact of Stellar Heterogeneity on Transmission Spectra of Planets Orbiting Broadly Sun-like Stars. The Astronomical Journal, 157(3), 96. doi:10.3847/1538-3881/aaf892

Microfluidic Production of Pyrophosphate Catalyzed by Mineral Membranes with Steep pH Gradients

Wang, Q., Barge, L. M., & Steinbock, O. (2019). Microfluidic Production of Pyrophosphate Catalyzed by Mineral Membranes with Steep pH Gradients. Chemistry – A European Journal. doi:10.1002/chem.201805950

Carboxydotrophy potential of uncultivated Hydrothermarchaeota from the subseafloor crustal biosphere

Carr, S. A., Jungbluth, S. P., Eloe-Fadrosh, E. A., Stepanauskas, R., Woyke, T., Rappé, M. S., & Orcutt, B. N. (2019). Carboxydotrophy potential of uncultivated Hydrothermarchaeota from the subseafloor crustal biosphere. The ISME Journal. doi:10.1038/s41396-019-0352-9

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