USA HISTORY

Detailed explanation-1: -On October 4, 1957, the USSR launched Sputnik, the first artificial satellite to orbit Earth. The satellite, an 85-kilogram (187-pound) metal sphere the size of a basketball, was launched on a huge rocket and orbited Earth at 29, 000 kilometers per hour (18, 000 miles per hour) for three months.

Detailed explanation-2: -Sputnik’s official designation was “PS-1” or “Elementary Satellite 1” in Russian. The satellite was launched from what is now called the Baikonur Cosmodrome on Oct. 4, 1957. The 184.3-pound (83.6 kg) craft’s primary function was to place a radio transmitter into orbit around the Earth.

Detailed explanation-3: -The Soviet Union inaugurates the “Space Age” with its launch of Sputnik, the world’s first artificial satellite, on October 4, 1957. The spacecraft, named Sputnik after the Russian word for “fellow traveler, ” was launched at 10:29 p.m. Moscow time from the Tyuratam launch base in the Kazakh Republic.

Detailed explanation-4: -Sputnik is the artificial satellite which was launched by Soviet Union in 1957. Sputnik-1 was the first satellite launched. Then there were two successors of Sputnik which were Sputnik-2 and Sputnik-3. Sputnik is also an artificial satellite.