During which decade were satellites first sent into orbit? 1940s 1950s 1960s 1970s

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During which decade were satellites first sent into orbit? 1940s 1950s 1960s 1970s

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The second option is correct (B).

Satellites are equipment that stays in orbit around the Earth after being launched into space. These kits are now basic for deploying technologies on Earth such as mapping, communications and tracking.

The former Soviet Union put the first satellite into orbit in 1957. The Sputnik I had a mass of about 83 kg and had no specific function, transmitting only a signal from a radio. Technology has evolved, other countries have launched it and today there are separate satellites for television, meteorology, communications, etc.