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en.wikipedia.org/wiki/Sputnik_1

Sputnik 1 (/ ˈ s p ʊ t n ɪ k / or / ˈ s p ʌ t n ɪ k /; "Satellite-1", or "PS-1", Простейший Спутник-1 or Prosteyshiy Sputnik-1, "Elementary Satellite 1") was the first artificial Earth satellite. The Soviet Union launched it into an elliptical low Earth orbit on 4 October 1957, orbiting for three weeks before its batteries died, then silently for two more months befor...

history.nasa.gov/sputnik

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 ...

en.wikipedia.org/wiki/Sputnik_2

Sputnik 2 (Russian pronunciation: [ˈsputʲnʲɪk], Russian: Спутник-2, Satellite 2), or Prosteyshiy Sputnik 2 (PS-2, Russian: Простейший Спутник 2, Elementary Satellite 2) was the second spacecraft launched into Earth orbit, on 3 November 1957, and the first to carry a living animal, a Soviet space dog named Laika, who died, a few hours after the launch.

www.history.com/this-day-in-history/sputnik-launched

The first U.S. satellite, Explorer, was launched on January 31, 1958. By then, the Soviets had already achieved another ideological victory when they launched a dog into orbit aboard Sputnik 2.The ...

www.quora.com/Where-is-Sputnik-now

Sputnik design. I found this Russian site only recently, which provides more detail as to the launch of the Sputnik satellite than I've ever found in the past. The author's sources are listed. Sputnik's mission. More interesting to me is the following chapter, which details the aftermath of the launch as seen from the Russian perspective.

www.answers.com/Q/What_happened_to_Sputnik_1

Sputnik 1 changed mankind because it was the first satellite in theworld to ever be launched. It was launched by the Soviet Union.This was the beginning of the people around the world ...

answers.yahoo.com/question/index?qid=20101210211651AAQrbBk

Best Answer: On November 3, 1957, the U.S.S.R. stunned the world with a space sensation -- the launch of Sputnik 2 with a live dog on-board. But many details of what happened to the mission have only recently been revealed. The Space Age had started less than a month before, with the launch of the first Soviet satellite on October 4, 1957.

www.spaceanswers.com/.../what-happened-during-the-space-race

What happened during the Space Race? by Gemma Lavender, 31 August 2018 We know it was a competition during the 20th Century, but what was the end result? comments. Sputnik 1, as shown in this artist’s impression, was launched by the Soviets in 1957. Asked by Leigh Marklow.

www.russiandogs.net/what-happened-to-russian-sputnik-2.html

On November 3, 1957, the U.S.S.R. stunned the world with a space sensation — the launch of Sputnik 2 with a live dog on-board. But many details of what happened to the mission have only recently been revealed.

sputniknews.com

Sputnik is a major new media brand with modern multimedia centers in dozens of countries. Sputnik is uniquely positioned as a provider of alternative news content and as a radio broadcaster. Offering a fuller picture of the world with a truly diverse range of views, Sputnik tells the untold.