A satellite is an object that orbits a heavenly body, normally a planet. There are both natural satellites, such as the moon, and man-made satellites, such as Sputnik.
Manmade satellites are very important in everyday life nowadays. We use them every day through our phones. Satellites help to triangulate our location, establish an internet connection in various regions of the world, and to help monitor large weather patterns in order to predict hurricanes and other events.