Satellites have contributed much in the area of communications. One example would be because of the Andes mountain range, the countries of Chile and Argentina have always had difficulty communicating even though they share a 2,000 mile border. Satellites have solved this problem. Another example is In 1985, Live Aid rock concerts broadcast from two parts of the globe reached 1.5 billion people via satellite, raising tens of millions of dollars to help African famine victims. People regularly watch meetings between world leaders, astronauts in space, and worldwide sporting events through satellites.