SOLAR SYSTEM

Detailed explanation-1: -Description. 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-2: -On October 4, 1957, the Soviet Union launched the earth’s first artificial satellite, Sputnik I. The successful launch came as a shock to experts and citizens in the United States, who had hoped that the United States would accomplish this scientific advancement first.

Detailed explanation-3: -Aryabhata was the first artificial satellite launched by India on 19th April 1975.

Detailed explanation-4: -October 4, 1957. Basically, Sputnik was a polished metal sphere made of aluminum alloy. Specifically, it was 23 inches (58 cm) in diameter – about the size of a beach ball – and weighed just 184 pounds (83 kilograms). Also it had four external radio antennae to broadcast radio pulses. And broadcast they did.

Detailed explanation-5: -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-6: -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.