Saturn

How many spacecraft have been to Saturn?
How old is Saturn?
How long does it take Saturn to go around the Sun?
How long is a day on Saturn?
Where is Saturn?
How many moons does Saturn have?
If I stood on Saturn would I sink?
What color is Saturn?
What is Saturn made of?
How did Saturn get its name?

Who discovered Saturn?
Can Saturn really float on water?
How strong is the gravity on Saturn?
What holds Saturn's rings together?
How many rings does Saturn have?
What are Saturn's rings made of?
How large are Saturn's rings?
How did Saturn get its rings?
How big is Saturn?

What holds Saturn's rings together?

Saturn's rings are held together by gravity. Saturn also has several shepherd moons, small moons that orbit near the outer edges of rings or within gaps in the rings. The gravity of shepherd moons serves to maintain a sharply defined edge to the ring.