Europa possesses vast oceans which may have a chemical makeup close to that of Earth, and could be warmer than astronomers previously believed. This finding increases chances alien life may be found on Jupiter's fourth largest moon. However, another satellite also holds promise of lifeforms living beyond the Earth - Saturn's largest moon, Titan. http://www.techtimes.com/articles/1...ight-alien-life-be-hiding-europa-or-titan.htm
Europa was my choice back when "New Horizons"was given the go ahead in place of it. [Shame both could not have been undertaken] I of course did grow to love and cherish our New Horizons baby as it has done some excellent science.