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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August 2022Nucleobases in Meteorites to Nucleobases in RNA and DNA?

Krishnamurthy, R., Goldman, A. D., Liberles, D. A., Rogers, K. L., & Tor, Y. (2022). Nucleobases in Meteorites to Nucleobases in RNA and DNA? Journal of Molecular Evolution, 90(5), 328–331. doi:10.1007/s00239-022-10069-x

November 2021Tuning DNA Supramolecular Polymers by the Addition of Small, Functionalized Nucleobase Mimics

Lachance-Brais, C., Hennecker, C. D., Alenaizan, A., Luo, X., Toader, V., Taing, M., … Sleiman, H. F. (2021). Tuning DNA Supramolecular Polymers by the Addition of Small, Functionalized Nucleobase Mimics. Journal of the American Chemical Society. doi:10.1021/jacs.1c08972

December 2018Experimentally investigating the origin of DNA/RNA on early Earth

Krishnamurthy, R. (2018). Experimentally investigating the origin of DNA/RNA on early Earth. Nature Communications, 9(1), None. doi:10.1038/s41467-018-07212-y

April 2018The Photochemistry of Unprotected DNA and DNA inside Bacillus subtilis Spores Exposed to Simulated Martian Surface Conditions of Atmospheric Composition, Temperature, Pressure, and Solar Radiation

Nicholson, W. L., Schuerger, A. C., & Douki, T. (2018). The Photochemistry of Unprotected DNA and DNA inside Bacillus subtilis Spores Exposed to Simulated Martian Surface Conditions of Atmospheric Composition, Temperature, Pressure, and Solar Radiation. Astrobiology, 18(4), 393–402. doi:10.1089/ast.2017.1721

March 2018Heterogeneous Pyrophosphate Linked DNA-Oligonucleotides: Aversion for DNA but Affinity for RNA

Anderson, B., & Krishnamurthy, R. (2018). Heterogeneous Pyrophosphate Linked DNA-Oligonucleotides: Aversion for DNA but Affinity for RNA. Chemistry - A European Journal. doi:10.1002/chem.201800538

July 2017Characterization of a cold-adapted DNA photolyase from C. psychrerythraea 34H

Munshi, S., Rajamoorthi, A., & Stanley, R. J. (2017). Characterization of a cold-adapted DNA photolyase from C. psychrerythraea 34H. Extremophiles, 21(5), 919–932. doi:10.1007/s00792-017-0953-z

October 2016RNA-DNA Chimeras in the Context of an RNA World Transition to an RNA/DNA World

Gavette, J. V., Stoop, M., Hud, N. V., & Krishnamurthy, R. (2016). RNA-DNA Chimeras in the Context of an RNA World Transition to an RNA/DNA World. Angewandte Chemie, 128(42), 13398–13403. doi:10.1002/ange.201607919

April 2015Folding and Imaging of DNA Nanostructures in Anhydrous and Hydrated Deep-Eutectic Solvents

Gállego, I., Grover, M. A., & Hud, N. V. (2015). Folding and Imaging of DNA Nanostructures in Anhydrous and Hydrated Deep-Eutectic Solvents. Angewandte Chemie International Edition, 54(23), 6765–6769. doi:10.1002/anie.201412354

December 2011Case Study: Ancient DNA Recovered from Pleistocene-Age Remains of a Florida Armadillo

Letts, B., & Shapiro, B. (2011). Ancient DNA, None(None), 87–92. doi:10.1007/978-1-61779-516-9_12

March 2011Evaluation of a new fluorimetric DNA–DNA hybridization method

Loveland-Curtze, J., Miteva, V. I., & Brenchley, J. E. (2011). Canadian Journal of Microbiology, 57(3), 250–255. doi:10.1139/w10-121