Some narrow rings of Saturn are seen in space probe photos to be caused by
A)gravitational interactions between ring particles.
B)a spiral density wave which confines them.
C)the magnetic field which holds them in place.
D)small shepherd moons that orbit inside and outside the rings

Question

Quizplus · Accepted Answer

Narrow rings in Saturn's rings are typically caused by small shepherd moons that orbit inside and outside the rings. These moons gravitationally interact with the ring particles, causing them to become confined and form the narrow ring structure observed.

Some Narrow Rings of Saturn Are Seen in Space Probe