After 11 years orbiting Saturn, NASA’s Cassini spacecraft has changed our understanding of liquid water in the outer solar system.

 

http://www.nytimes.com/video/science/space/100000004003105/saturn-cassini-enceladus-moons.html?emc=edit_au_20151029&nl=afternoonupdate&nlid=52543281

By JASON DRAKEFORD, DENNIS OVERBYE and JONATHAN CORUM | Oct. 28, 2015