NASA's Cassini spacecraft has spent 11 years studying the ringed planet and its moons. In the past week Cassini started its final series of flybys of Enceladus. The returned pics have been amazing as can be seen in this close up of the moon's North pole.
Enceladus has a global ocean underneath its icy surface and is a desire future mission for NASA. The exploration of this ocean would give us our first look at such a feature beyond our own planet and who knows what we would find.
Sky Guy in VA