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1957-10-07_New_Moon.ogv (Ogg multiplexed audio/video file, Theora/Vorbis, length 45 s, 640 × 480 pixels, 1.42 Mbps overall, file size: 7.66 MB) This is a file from the Wikimedia Commons . Information from its description page there is shown below.
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.
Sputnik 2 (Russian pronunciation: [ˈsputʲnʲɪk], Russian: Спутник-2, Satellite 2), or Prosteyshiy Sputnik 2 (PS-2, Russian: Простейший Спутник 2, Simplest Satellite 2), [3]: 155 launched on 3 November 1957, was the second spacecraft launched into Earth orbit, and the first to carry an animal into orbit, a Soviet space dog named Laika.
The Sputnik crisis was a period of public fear and anxiety in Western nations about the perceived technological gap between the United States and Soviet Union caused by the Soviets' launch of Sputnik 1, the world's first artificial satellite. [1]
The first orbital flight of an artificial satellite, Sputnik 1, was launched in October 1957, by the Soviet Union.In November, the second orbital flight took place. The Soviet Union launched the first animal to orbit the Earth, a dog, Laika, who died in orbit a few hours after launch.
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.
Sputnik program: The Union of Soviet Socialist Republics launched Sputnik 1, the first artificial Earth satellite, beginning the Sputnik crisis and the Space Age. This event galvanized interest and action on the part of the American public to support an active role in space research, technology, and exploration. [18] [19] [20]
The Tsiolkovsky-influenced Sergey Korolev became the chief rocket designer, and derivatives of his R-7 Semyorka missiles were used to launch the world's first artificial Earth satellite, Sputnik 1, on October 4, 1957. The U.S., after the launch of Sputnik and two embarrassing failures of Vanguard rockets, launched Explorer 1 on February 1, 1958 ...