How Do Satellites Work?

Somewhere over your head, right the moment is an artificial satellite. Many of them actually. They beam television and radio signals down to Earth. They can tell us our exact time and location, and they can also help us predict the weather and they are now even providing broadband internet. But how do they work? How do you get something to wiz around in space without crashing down? Learn more about your ad choices. Visit megaphone.fm/adchoices