The other moon of interest here is Titan, a moon of Saturn that has seasons and surface liquid: http://www.newscientist.com/article/dn16626-europa-trumps-titan

The other moon of interest here is Titan, a moon of Saturn that has seasons and surface liquid: http://www.newscientist.com/article/dn16626-europa-trumps-titan-in-bid-for-outer-planet-mission.html http://www.newscientist.com/article/dn16626-europa-trumps-ti... If you're interested in this kind of origin-of-life stuff, you might like "The Universe" or "Evolve" http://www.history.com/content/universe http://www.history.com/content/universe http://en.wikipedia.org/wiki/Evolve_%28TV_series%29 http://en.wikipedia.org/wiki/Evolve_%28TV_series%29