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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May 2015The Gemini NICI Planet-Finding Campaign: asymmetries in the HD 141569 disc

Biller, B. A., Liu, M. C., Rice, K., Wahhaj, Z., Nielsen, E., Hayward, T., … Kuchner, M. J. (2015). Monthly Notices of the Royal Astronomical Society, 450(4), 4446–4457. doi:10.1093/mnras/stv870

Cometary Isotopic Measurements

Bockelée-Morvan, D., Calmonte, U., Charnley, S., Duprat, J., Engrand, C., Gicquel, A., … Hässig, M. (2015). Space Sci Rev, 197(1-4), 47–83. doi:10.1007/s11214-015-0156-9

Genome expansion via lineage splitting and genome reduction in the cicada endosymbiont Hodgkinia

Campbell, M. A., Van Leuven, J. T., Meister, R. C., Carey, K. M., Simon, C., & McCutcheon, J. P. (2015). Proc Natl Acad Sci USA, 112(33), 10192–10199. doi:10.1073/pnas.1421386112

The radiation stability of glycine in solid CO2 – In situ laboratory measurements with applications to Mars

Gerakines, P. A., & Hudson, R. L. (2015). Icarus, 252(None), 466–472. doi:10.1016/j.icarus.2015.02.008

Habitability of Waterworlds: Runaway Greenhouses, Atmospheric Expansion, and Multiple Climate States of Pure Water Atmospheres

Goldblatt, C. (2015). Astrobiology, 15(5), 362–370. doi:10.1089/ast.2014.1268

Uranium and molybdenum isotope evidence for an episode of widespread ocean oxygenation during the late Ediacaran Period

Kendall, B., Komiya, T., Lyons, T. W., Bates, S. M., Gordon, G. W., Romaniello, S. J., … Jiang, G. (2015). Geochimica et Cosmochimica Acta, 156(None), 173–193. doi:10.1016/j.gca.2015.02.025

Prebiotic Alternatives to Proteins: Structure and Function of Hyperbranched Polyesters

Mamajanov, I., Callahan, M. P., Dworkin, J. P., & Cody, G. D. (2015). Orig Life Evol Biosph, 45(1-2), 123–137. doi:10.1007/s11084-015-9430-9

Limited Zn and Ni mobility during simulated iron formation diagenesis

Robbins, L. J., Swanner, E. D., Lalonde, S. V., Eickhoff, M., Paranich, M. L., Reinhard, C. T., … Peacock, C. L. (2015). Chemical Geology, 402(None), 30–39. doi:10.1016/j.chemgeo.2015.02.037

Nonphotosynthetic Pigments as Potential Biosignatures

Schwieterman, E. W., Cockell, C. S., & Meadows, V. S. (2015). Astrobiology, 15(5), 341–361. doi:10.1089/ast.2014.1178

Long-term deformation driven by small ambient tectonic stresses and strong oscillating tidal within Enceladus with analogy to rock behavior near the San Andreas Fault

Sleep, N. H. (2015). Geochem. Geophys. Geosyst., 16(5), 1670–1686. doi:10.1002/2015gc005725

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