Saturn's Moon Enceladus

NASA's Cassini spacecraft, has been studying Saturn's moon Enceladus and has discovered that this satellite has the potential to harbor life.  In its recent pass through over the years since Cassini arrived at Saturn in 2004 it has found some interesting facts about it. Enceladus is an icy moon assumed to be made of solid ice, but from closer looks the moon was found to be geologically active, which showed signs of activity under the ice.   



From this picture we can see how under the ice cap, there seems to be hydro thermal activity, and with a closer flyby by Cassini we will learn if this kind of activity has created a huge ocean at a global scale, and whether it has created an environment with the ingredients necessary for life. The flyby will provide more information on how habitable the moon really is, and how it behaves geologically and chemically. 

sources:
https://youtu.be/BZ1KowQXc3Y
http://www.nasa.gov/feature/jpl/seven-key-facts-about-cassinis-oct-28-plume-dive