Read the rest at: http://www.popularmechanics.com/space/deep-space/a14507/enceladus-saturn-moon-ocean/
Also another fact from the article, it has the "lost city hydrothermal field" that the Atlantic Ocean supposedly has. Scientists believed thats where life may have originated, so Enceladus may have life on it.
E.T.? Not so sure, but maybe bacteria and such. And given years later, maybe some more complex organisms. But who knows.
What do you guys think?