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Sputnik 1 (/ ˈspʌtnɪk, ˈspʊtnɪk /, 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. It sent a radio signal back to Earth for three weeks ...
Oct 4, 2022 · On Oct. 4, 1957, the Soviet Union announced that they had placed a satellite called Sputnik into orbit around the Earth, inaugurating the Space Age. The launch took place from a site now known as the Baikonur Cosmodrome in Soviet Kazakhstan. The rocket’s large core stage also reached orbit, and due to its reflectivity most observers saw it ...
History changed on October 4, 1957, when the Soviet Union successfully launched Sputnik I. The world's first artificial satellite was about the size of a beach ball (58 cm.or 22.8 inches in diameter), weighed only 83.6 kg. or 183.9 pounds, and took about 98 minutes to orbit the Earth on its elliptical path. That launch ushered in new political ...
This article is more than 5 years old. A technician working on Sputnik 1 in 1957, prior to its launch. After a mere 3 months in space,... [+] Sputnik 1 fell back to Earth due to atmospheric drag ...
2 of 2. Sputnik 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. It achieved an Earth orbit with an apogee (farthest point from Earth) of 940 km (584 ...
- The Editors of Encyclopaedia Britannica
Oct 4, 2012 · Fifty-five years ago today, the Space Race was kicked into gear by a silver basketball flying through the sky. Sputnik 1, the Soviet probe that became the first manmade object to reach space ...
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3 days ago · The Sputnik 1 satellite was a 58.0 cm-diameter aluminum sphere that carried four whip-like antennas that were 2.4-2.9 m long. The antennas looked like long "whiskers" pointing to one side. The spacecraft obtained data pertaining to the density of the upper layers of the atmosphere and the propagation of radio signals in the ionosphere.
