Saturn is the sixth planet from the Sun. Its beautiful rings are made mostly of water ice crystals, with some dust and other impurities mixed in. The particles range from tiny specks of dust to huge boulder-sized chunks and a few even larger.

Image from Voyager 1 spacecraft.

Looking through the icy particles of Saturn's rings from beneath.

Image by Cassini spacecraft.

This image of Saturn's rings from the Cassini spacecraft spans about 11,000 kilometers (6,800 miles), more than twice the width of the U.S.

This view of Saturn's icy rings shows their complex structure.

Image by Cassini spacecraft.

This color-enhanced image of Saturn's rings from the Voyager 1 spacecraft shows their detailed structure. The many colors show differences in the composition of each of the thin rings. The rings differ in their recipe of ice and dust content.