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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June 2018Life's Biological Chemistry: A Destiny or Destination Starting from Prebiotic Chemistry?

Krishnamurthy, R. (2018). Life's Biological Chemistry: A Destiny or Destination Starting from Prebiotic Chemistry? Chemistry - A European Journal. doi:10.1002/chem.201801847

Bacillus safensis FO-36b and Bacillus pumilus SAFR-032: a whole genome comparison of two spacecraft assembly facility isolates

Tirumalai, M. R., Stepanov, V. G., Wünsche, A., Montazari, S., Gonzalez, R. O., Venkateswaran, K., & Fox, G. E. (2018). Bacillus safensis FO-36b and Bacillus pumilus SAFR-032: a whole genome comparison of two spacecraft assembly facility isolates. BMC Microbiology, 18(1), None. doi:10.1186/s12866-018-1191-y

Intensified chemical weathering during the Permian-Triassic transition recorded in terrestrial and marine successions

Cao, Y., Song, H., Algeo, T. J., Chu, D., Du, Y., Tian, L., … Tong, J. (2018). Intensified chemical weathering during the Permian-Triassic transition recorded in terrestrial and marine successions. Palaeogeography, Palaeoclimatology, Palaeoecology. doi:10.1016/j.palaeo.2018.06.012

Hypervelocity cratering and disruption of the Northwest Africa 869 ordinary chondrite meteorite: Implications for crater production, catastrophic disruption, momentum transfer and dust production on asteroids

Flynn, G. J., Durda, D. D., Patmore, E. B., Jack, S. J., Molesky, M. J., May, B. A., … Macke, R. J. (2018). Hypervelocity cratering and disruption of the Northwest Africa 869 ordinary chondrite meteorite: Implications for crater production, catastrophic disruption, momentum transfer and dust production on asteroids. Planetary and Space Science. doi:10.1016/j.pss.2018.06.019

The development and metamorphosis of the indirect developing acorn worm Schizocardium californicum (Enteropneusta: Spengelidae)

Gonzalez, P., Jiang, J. Z., & Lowe, C. J. (2018). The development and metamorphosis of the indirect developing acorn worm Schizocardium californicum (Enteropneusta: Spengelidae). Frontiers in Zoology, 15(1), None. doi:10.1186/s12983-018-0270-0

Bias in carbon concentration and δ 13 C measurements of organic matter due to cleaning treatments with organic solvents

Muller, É., Thomazo, C., Stüeken, E. E., Hallmann, C., Leider, A., Chaduteau, C., … Ader, M. (2018). Bias in carbon concentration and δ 13 C measurements of organic matter due to cleaning treatments with organic solvents. Chemical Geology. doi:10.1016/j.chemgeo.2018.06.018

Draft Genome Sequence of a Divergent Anaerobic Member of the Chloroflexi Class Ardenticatenia from a Sulfidic Hot Spring

Ward, L. M., McGlynn, S. E., & Fischer, W. W. (2018). Draft Genome Sequence of a Divergent Anaerobic Member of the Chloroflexi Class Ardenticatenia from a Sulfidic Hot Spring. Genome Announcements, 6(25), e00571–18. doi:10.1128/genomea.00571-18

Draft Genome Sequences of Two Basal Members of the Anaerolineae Class of Chloroflexi from a Sulfidic Hot Spring

Ward, L. M., McGlynn, S. E., & Fischer, W. W. (2018). Draft Genome Sequences of Two Basal Members of the Anaerolineae Class of Chloroflexi from a Sulfidic Hot Spring. Genome Announcements, 6(25), e00570–18. doi:10.1128/genomea.00570-18

MetaPOAP: Presence or Absence of Metabolic Pathways in Metagenome-Assembled Genomes

Ward, L. M., Shih, P. M., & Fischer, W. W. (2018). MetaPOAP: Presence or Absence of Metabolic Pathways in Metagenome-Assembled Genomes. Bioinformatics. doi:10.1093/bioinformatics/bty510

After the boring billion and before the freezing millions: evolutionary patterns and innovations in the Tonian Period

Xiao, S., & Tang, Q. (2018). After the boring billion and before the freezing millions: evolutionary patterns and innovations in the Tonian Period. Emerging Topics in Life Sciences, None, ETLS20170165. doi:10.1042/etls20170165

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