Last year, some of the same research team reported finding complex organic macromolecules within the water vapor that were likely floating on the surface of Enceladus’ ocean. This year, they followed up with a more sophisticated analysis of what sorts of molecules were dissolved into the ocean water. The compounds found within Enceladus’ water vapor plumes, which are responsible for most of the content of Saturn’s E ring, are believed to be present in the liquid subsurface ocean that exists underneath the south pole rather than being the result of contamination as the water escapes from its subsurface prison. That’s significant because many of the nitrogen and oxygen-based compounds the researchers detected are also essential to amino acids here on Earth…
“If the conditions are right, these molecules coming from the deep ocean of Enceladus could be on the same reaction pathway as we see here on Earth,” said Nozair Khawaja, who led the research team of the Free University of Berlin. “We don’t yet know if amino acids are needed for life beyond Earth, but finding the molecules that form amino acids is an important piece of the puzzle.” Khawaja’s findings were published Oct. 2 in the Monthly Notices of the Royal Astronomical Society.
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