So that's neat. Nasa says it streams on the surface in the summers; they thought it was there before because they noticed stream lines that changed over time. They say it's very possible there's a much larger amount under ground that supports life. Following Europa's news, this is quite exciting. [spoiler][url=http://www.sunlessinseattle.com/wp-content/uploads/2013/04/Ancient-Aliens.jpg]H.G. Wells was right![/url][/spoiler][spoiler]So many -blam!-ing possible Alien memes.[/spoiler]