USA HISTORY

Detailed explanation-1: -Sputnik, any of a series of three artificial Earth satellites, the first of whose launch by the Soviet Union on October 4, 1957, inaugurated the space age. Sputnik 1, the first artificial satellite launched, was a 83.6-kg (184-pound) capsule.

Detailed explanation-2: -The Sputnik 1 spacecraft was the first artificial satellite successfully placed in orbit around the Earth and was launched from Baikonur Cosmodrome at Tyuratam (370 km southwest of the small town of Baikonur) in Kazakhstan, then part of the former Soviet Union.

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 1 was launched in 1957, and just three months later, it spontaneously de-orbited and fell back to Earth.