Today's post is about Saturn's Rings!

 Today's post is about Saturn's Rings!

Saturn it's not the only planet with rings. Jupiter, Uranus and Neptune have rings, too. But Saturn's rings are the biggest and brightest.

An astronomer named Galileo Galilei was the first person to see Saturn's rings. He spotted them while looking into space through a telescope in 1610.

One thing we know for sure. Saturn's rings are made of ice and rock. These pieces vary in size. Some are as small as a grain of sand. Others are as large as a house. But scientists aren't sure when or how Saturn's rings formed. They think the rings might have something to do with Saturn's many moons.

Earth has only one moon. But Saturn has at least 60 moons orbiting it that we know about. Asteroids and meteoroids sometimes crash into these moons and break them into pieces. The rings could be made from these broken pieces of moons.

• The rings may also be made from material left over from when Saturn first formed.

From far away, Saturn looks like it has seven large rings. Each large ring is named for a letter of the alphabet. The rings were named in the order they were discovered. The first ring discovered was named the A ring, but it is not the ring closest to or farthest from Saturn.

Some of the rings are close together. Others have large gaps between them. The rings do not sit still. They circle around Saturn at very high speeds. A closer look shows that each large ring is made up of many small rings. The small rings are sometimes called ringlets. More rings and ringlets could still be discovered.