Here is a video from NASA, the American government agency that is responsible for the space shuttle and other rocket launches. The video shows the space shuttle’s solid boosters returning to earth. The solid boosters are two of the space shuttle’s gas tanks. When the space shuttle is high enough off the earth, the boosters break off from the space shuttle and land in the ocean. This video takes about five minutes to watch. It follows the boosters from the time the break away from the space shuttle to the time they splash down in the ocean. Be sure to watch all the way to the end to see a surprise.

Have you ever seen a shooting star? Sometimes late at night you can see a streak of light blaze across the sky, as in the picture at right.

Is a shooting star really a star? Not really. Real stars (including our sun) are giant balls of fiery gas. Shooting stars are actually much smaller than real stars, and they’re made of rock or metal. They look like stars because they fly through the air so quickly that they become hot and glow. You can see how this works by rubbing your hands together. The same force that makes a meteor hot as it flies through the air is what makes your hands hot when you rub them together. This is called friction.

Scientists have a special name for shooting stars: they call them meteors.

You don’t have to worry about being hit by a meteor. Most meteors burn up before they hit the earth.