Satellites allow us to see our world from above, so we can study our planet more closely. These satellites transmit data that is available to anyone with compatible hardware. Amateur Radio has always been at the forefront of high-tech innovation and research, so groups of amateurs have built several satellites that orbit our Earth every minute. These satellites can be used for data communications, voice communications, and even chess games. A recent breakthrough is the so-called QO 100 satellite, which is in a geostationary orbit and does not move on our sky. It can handle voice and amateur televion transmissions.