Satellites
- Episode aired Dec 17, 2020
Sputnik, the first artificial satellite, was launched into space on a rocket by the Soviet Union in 1957. A year later, the USA followed suit with Explorer. Today there are more than 2,000 s... Read allSputnik, the first artificial satellite, was launched into space on a rocket by the Soviet Union in 1957. A year later, the USA followed suit with Explorer. Today there are more than 2,000 satellites in orbit around the Earth, used mainly for telephony, television, radio and digi... Read allSputnik, the first artificial satellite, was launched into space on a rocket by the Soviet Union in 1957. A year later, the USA followed suit with Explorer. Today there are more than 2,000 satellites in orbit around the Earth, used mainly for telephony, television, radio and digital data transmission. A large number are also used for scientific research and meteorolog... Read all