SOLAR SYSTEM

Detailed explanation-1: -Launched on July 10, 1962, Telstar 1, developed by the American Telephone and Telegraph Company (AT&T), was the world’s first active communications satellite. AT&T used the satellite to test basic features of communications via space.

Detailed explanation-2: -The first satellite to relay voice signals was launched by the U.S. government’s Project SCORE (Signal Communication by Orbiting Relay Equipment) from Cape Canaveral, Florida, on December 19, 1958. It broadcast a taped message conveying “peace on earth and goodwill toward men everywhere” from U.S. Pres.

Detailed explanation-3: -SCORE (Signal Communications by Orbital Relay Equipment), launched on 18 December 1958 aboard an Atlas missile, was the first communications satellite.

Detailed explanation-4: -John Pierce invented the first communications satellite, enabling radio waves to bounce from one ground-based station to another. Pierce learned from the success of his design with Echo 1– a large aluminum sphere acting as a mirror, reflecting radio waves.

Detailed explanation-5: -On 4 October 1957 the Soviet Union launched the world’s first artificial satellite, Sputnik 1. Since then, about 8, 900 satellites from more than 40 countries have been launched.