1st satellite..........and 1st man into space...........Yuri G.........all mentioned in the film on space exploration on the 2nd floor of the Air and Space museum.........the one in Wash DC........

Sputnik 1 - Wikipedia

https://en.wikipedia.org/wiki/Sputnik_1

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Sputnik 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° ...

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Sputnik - NASA History Office

https://history.nasa.gov/sputnik/

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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 ...

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Sputnik launched - Oct 04, 1957 - HISTORY.com

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

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The Soviet Union inaugurates the “Space Age” with its launch of Sputnik, the world's first artificial satellite. The spacecraft, named Sputnik after the Russian word for “satellite,” was launched at 10:29 p.m. Moscow time from the Tyuratam launch base in the Kazakh Republic. Sputnik had a diameter of 22 inches and weighed ...