Many modern satellites are carried into space using the Space Shuttle. Voyager 2 reached Uranus in 1986. It used both nuclear power and solar power. The closer a satellite is to the Earth the less time it takes to orbit the Earth. Use the information in the article to work out the speed of a geostationary or geosynchronous satellite.
Satellites send information as a microwave beam.
Clementine is a satellite orbiting the Moon. Recently a fault developed with the Hubble Space Telescope. Several astronauts were sent to fix it.