Enceladus: home of alien lifeforms?

Mars dominates the search for extraterrestrial life in our solar system, but a growing number of scientists believe Enceladus, an icy moon of Saturn, is a much better betEnceladus is little bigger than a lump of rock and has appeared, until recently, as a mere pinprick of light in astronomers' telescopes. Yet Saturn's tiny moon has suddenly become a major attraction for scientists. Many now believe it offers the best hope we have of discovering life on another world inside our solar system.The idea that a moon a mere 310 miles in diameter, orbiting in deep, cold space,  1bn miles from the sun, could provide a home for alien lifeforms may seem extraordinary. Nevertheless, a growing number of researchers consider this is a real prospect and argue that Enceladus should be rated a top priority for future space missions. This point is endorsed by astrobiologist Professor Charles Cockell of Edinburgh...

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