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Enceladus Organics on Grains of Ice (Illustration)

Oct. 2, 2019
This illustration shows the process of organic compounds making their way onto ice grains emitted in plumes from Saturn's moon Enceladus, where they were detected by NASA's Cassini spacecraft.

This illustration shows how newly discovered organic compounds — the ingredients of amino acids — were detected by NASA's Cassini spacecraft in the ice grains emitted from Saturn's moon Enceladus. Powerful hydrothermal vents eject material from Enceladus' core into the moon's massive subsurface ocean. After mixing with the water, the material is released into space as water vapor and ice grains. Condensed onto the ice grains are nitrogen- and oxygen-bearing organic compounds.

On Earth hydrothermal vents on the ocean floor provide the energy that fuels reactions that produce amino acids, the building blocks of life. Scientists believe Enceladus' hydrothermal vents may operate in the same way, supplying energy that leads to the production of amino acids.

For more information about the Cassini-Huygens mission visit https://saturn.jpl.nasa.gov and https://www.nasa.gov/cassini.

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  • Enceladus
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  • Cassini Orbiter
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NASA/JPL-Caltech

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