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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October 2014Guanine-Centric Self-Assembly of Nucleotides in Water: An Important Consideration in Prebiotic Chemistry

Cassidy, L. M., Burcar, B. T., Stevens, W., Moriarty, E. M., & McGown, L. B. (2014). Astrobiology, 14(10), 876–886. doi:10.1089/ast.2014.1155

TAPHONOMY OF CAMBRIAN PHOSPHATIC SMALL SHELLY FOSSILS

Creveling, J. R., Knoll, A. H., & Johnston, D. T. (2014). PALAIOS, 29(6), 295–308. doi:10.2110/palo.2014.002

DEEP THERMAL INFRARED IMAGING OF HR 8799 bcde: NEW ATMOSPHERIC CONSTRAINTS AND LIMITS ON A FIFTH PLANET

Currie, T., Burrows, A., Girard, J. H., Cloutier, R., Fukagawa, M., Sorahana, S., … Kuchner, M. (2014). The Astrophysical Journal, 795(2), 133. doi:10.1088/0004-637x/795/2/133

Spatial variability in photosynthetic and heterotrophic activity drives localized δ 13 C org fluctuations and carbonate precipitation in hypersaline microbial mats

Houghton, J., Fike, D., Druschel, G., Orphan, V., Hoehler, T. M., & Des Marais, D. J. (2014). Geobiology, 12(6), 557–574. doi:10.1111/gbi.12113

Titan’s emission processes during eclipse

Lavvas, P., West, R. A., Gronoff, G., & Rannou, P. (2014). Icarus, 241(None), 397–408. doi:10.1016/j.icarus.2014.07.008

Microbial abundance and diversity patterns associated with sediments and carbonates from the methane seep environments of Hydrate Ridge, OR

Marlow, J. J., Steele, J. A., Case, D. H., Connon, S. A., Levin, L. A., & Orphan, V. J. (2014). Frontiers in Marine Science, 1(None), None. doi:10.3389/fmars.2014.00044

Carbonate-hosted methanotrophy represents an unrecognized methane sink in the deep sea

Marlow, J. J., Steele, J. A., Ziebis, W., Thurber, A. R., Levin, L. A., & Orphan, V. J. (2014). Nat Comms, 5(None), 5094. doi:10.1038/ncomms6094

DISCRIMINATING BETWEEN CLOUDY, HAZY, AND CLEAR SKY EXOPLANETS USING REFRACTION

Misra, A. K., & Meadows, V. S. (2014). The Astrophysical Journal, 795(1), L14. doi:10.1088/2041-8205/795/1/l14

THE GEMINI NICI PLANET-FINDING CAMPAIGN: THE ORBIT OF THE YOUNG EXOPLANET β PICTORIS b

Nielsen, E. L., Liu, M. C., Wahhaj, Z., Biller, B. A., Hayward, T. L., Males, J. R., … Close, L. M. (2014). The Astrophysical Journal, 794(2), 158. doi:10.1088/0004-637x/794/2/158

Astronomy: Hurling comets around a planetary nursery

Roberge, A. (2014). Nature, 514(7523), 440–441. doi:10.1038/514440a

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