Saturn’s rings

Definition

Saturn's rings are a collection of countless small particles of ice and rock that orbit Saturn. They are the most extensive and complex ring system in our solar system.

5 Must Know Facts For Your Next Test

1. Saturn's rings are primarily composed of water ice, with some dust and other chemical compounds mixed in.
2. The rings are divided into seven main groups named alphabetically in the order they were discovered: D, C, B, A, F, G, and E.
3. The gaps within the rings, such as the Cassini Division between the A and B rings, are created by gravitational interactions with Saturn's moons.
4. Despite their impressive appearance, the rings are relatively thin, typically only about 10 meters thick.
5. Saturn's moon Enceladus plays a crucial role in sustaining the E ring through its geysers that eject water vapor into space.

Review Questions

• What materials primarily compose Saturn's rings?
• Name at least three of the main groups of Saturn's rings.
• How do Saturn’s moons influence the structure of its rings?

Related terms

Enceladus: A moon of Saturn known for its icy surface and active geysers that contribute material to Saturn's E ring.

Cassini Division: A prominent gap between Saturn’s A and B rings caused by gravitational interactions with Saturn’s moon Mimas.

Giant Planets: Refers to Jupiter, Saturn, Uranus, and Neptune; these planets have massive sizes and thick atmospheres rich in hydrogen and helium.