People on Earth may take for granted today's high-tech world of
cell phones, GPS and the satellites high above the planet that make instant
communication possible. But it all began 50 years ago with one giant space
balloon. 10 July 1962 marked the birth of satellite communications. On this day
the Telstar satellite commenced its journey into space and became the first
ever active communications satellite. It carried the first live trans-Atlantic
TV broadcasts. Telstar was built by a team at Bell Telephone Laboratories in
USA and incorporated many innovations such as the transistor and the 3,600
solar panels that powered the satellite. Telstar produced 14 watts and relayed
its first and non-public television pictures on 11 July 1962. The satellite
could carry 600 voice calls and one black-and-white TV channel from an
egg-shaped orbit. Today, we use satellites for GPS, TV, radio, weather
tracking, military surveillance, space exploration and global communications,
among other things
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