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Sputnik 1 (/ ˈ s p ʌ t n ɪ k, ˈ s p ʊ t n ɪ k /, Russian: Спутник-1, Satellite 1), sometimes referred to as simply Sputnik, was the first artificial Earth satellite. It was launched into an elliptical low Earth orbit by the Soviet Union on 4 October 1957 as part of the Soviet space program .
The Sputnik rocket was an uncrewed orbital carrier rocket designed by Sergei Korolev in the Soviet Union, derived from the R-7 Semyorka ICBM. On 4 October 1957, it was used to perform the world's first satellite launch, placing Sputnik 1 into a low Earth orbit .
Sputnik 1 was the first artificial Earth satellite ever launched. On October 4, 1957, the USSR launched Sputnik 1 into orbit and received transmissions from it. [86] Sputnik 1 was designed to be the forerunner for multiple satellite missions. The technology constantly underwent upgrades as the weight of satellites increased.
Fifty-eight years ago today on October 4, 1957, Sputnik was launched into orbit by the Soviet Union.
Oct. 4—66 years ago, on October 4, 1957, the Soviet Union launched the world into the space race after sending the first satellite, Sputnik 1, into orbit. Sputnik 1 weighed around 184 pounds and ...
Geostationary or geosynchronous transfer orbit (GTO): An elliptic orbit where the perigee is at the altitude of a low Earth orbit (LEO) and the apogee at the altitude of a geostationary orbit. Hohmann transfer orbit : An orbital maneuver that moves a spacecraft from one circular orbit to another using two engine impulses .
Sputnik 1 was the first human-made object to achieve orbital spaceflight. It was launched on 4 October 1957 by the Soviet Union. Vostok 1, launched by the Soviet Union on 12 April 1961, carrying Yuri Gagarin, was the first successful human spaceflight to reach Earth orbit.
Sputnik 1. Sputnik (Спутник, Russian for "satellite" [1]) is a name for multiple spacecraft launched under the Soviet space program."Sputnik 1", "Sputnik 2" and "Sputnik 3" were the official Soviet names of those objects, and the remaining designations in the series ("Sputnik 4" and so on) were not official names but names applied in the West to objects whose original Soviet names may ...