Saturn's rings are largely made of water-ice; they are only a few dozen feet thick; and they weigh about 33 million trillion pounds. But astronomers still can't agree about how old they are, as estimates range between about 100,000 and 1 billion years old.

Saturn's rings are largely made of water-ice; they are only a few dozen feet thick; and they weigh about 33 million trillion pounds. But astronomers still can't agree about how old they are, as estimates range between about 100,000 and 1 billion years old.

Saturn's rings are largely made of water-ice; they are only a few dozen feet thick; and they weigh about 33 million trillion pounds. But astronomers still can't agree about how old they are, as estimates range between about 100,000 and 1 billion years old.

Climate change on Saturn's moon Titan may have triggered explosions of underground nitrogen pockets, forming craters that eventually turned into Titan's liquid-hydrocarbon lakes.

Saturn's Icy Moon Enceladus Is Likely the 'Perfect Age' to Harbor Life

Yes, Saturn's Rings Are Awesome — NASA's Cassini Showed Us Just HOW Awesome