Two tiny but significant satellites that follow nearly identical orbits around Saturn are called shepherd moons because they
A) clear particles from the Cassini division.
B) trail streams of gases behind them, like comet tails.
C) lift dust particles up into "spokes" above the rings.
D) concentrate particles into the narrow F ring of Saturn.

Question

Quizplus · Accepted Answer

Shepherd moons help maintain the structure of Saturn's rings by their gravitational influence. Specifically, they can confine particles into narrow rings, such as the F ring, through their gravitational forces, acting as boundaries that keep the particles in a defined path.

Two Tiny but Significant Satellites That Follow Nearly Identical Orbits