The presence of shepherd moons keeps the giant planets' ring systems completely stable and the rings will last forever.

Question

Quizplus · Accepted Answer

While the presence of shepherd moons can help to shape and maintain the structure of a planet's rings, the rings will not last forever due to a variety of factors such as collisions between ring particles and interactions with the planet's atmosphere and magnetic field.

The Presence of Shepherd Moons Keeps the Giant Planets' Ring