We have found that Saturn is not the only outer planet with rings; Jupiter, Uranus, and Neptune all have ring systems.
a. Do we think the ring systems surrounding these planets are as old as the planet? Why or why not?
b. Do we expect that inhabitants of Earth 100 million years from now will see the same ring systems around these planets as we do now? Why or why not?
c. Describe the processes that determine the evolution of rings around giant planets.