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This is an other Sputnik 1

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Short description for the timeline ok by Katerina's post. You have 2 ok photos that are added in dotstorming (Katerina's and Vladyslva's). You have voted Katerina's photo to be added in the timeline so your team is OK with the timeline task! KAterina's photo will be in the timeline

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Sputnik 1
04.10.1957
Sputnik 1 (/ˈspʊtnɪk/ or /ˈspʌtnɪk/; "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. It was a 58 cm (23 in) diameter polished metal sphere, with four external radio antennas to broadcast radio pulses. Its radio signal was easily detectable even by radio amateurs, and the 65° inclination and duration of its orbit made its flight path cover virtually the entire inhabited Earth. This surprise success precipitated the American Sputnik crisis and triggered the Space Race, a part of the Cold War. The launch ushered in new political, military, technological, and scientific developments.

Tracking and studying Sputnik 1 from Earth provided scientists with valuable information, even though the satellite wasn't equipped with sensors. The density of the upper atmosphere could be deduced from its drag on the orbit, and the propagation of its radio signals gave data about the ionosphere.

Sputnik 1 was launched during the International Geophysical Year from Site No.1/5, at the 5th Tyuratam range, in Kazakh SSR(now known as the Baikonur Cosmodrome). The satellite travelled at about 29,000 kilometres per hour (18,000 mph; 8,100 m/s), taking 96.2 minutes to complete each orbit. It transmitted on 20.005 and 40.002 MHz, which were monitored by radio operators throughout the world. The signals continued for 21 days until the transmitter batteries ran out on 26 October 1957. Sputnik burned up on 4 January 1958 while reentering Earth's atmosphere, after three months, 1440 completed orbits of the Earth and a distance travelled of about 70 million km (43 million mi)

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The first-ever artificial satellite took to the skies on Oct. 4, 1957.

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This is a zoomed-in picture of Sputink1 satellite

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I like this photo as it shows how small it was.
And a description can be : "Sputnik 1 (Спутник means literally "traveling companion" or "satellite" in Russian) was the first artificial Earth satellite.  Soviet Union successfully launched it, into an elliptical low Earth orbit on 4 October 1957 from the Baikonur Cosmodrome in Kazakhstan, surprising the world and kicking off the space age and the Cold War space race.

What do you think?

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This is a slide for our choice. We can chose one of these photos