It's 2,189 kilometres per hour (1,360 miles per hour): http://en.wikipedia.org/wiki/Enceladus_%28moon%29%23Possible_liquid_water http://en.wikipedia.org/wiki/E

It's 2,189 kilometres per hour (1,360 miles per hour): http://en.wikipedia.org/wiki/Enceladus_%28moon%29%23Possible_liquid_water http://en.wikipedia.org/wiki/Enceladus_%28moon%29%23Possible...