The first artificial Earth satellite was launched by the USSR on October 4, 1957.
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After the first circle around the Earth, TASS reports: "As a result of the hard work of research institutes and design offices, the world's first artificial satellite of the Earth - "Sputnik-1" was created."

This is a major breakthrough of the Soviet space program, with which the USSR marks its significant superiority over the USA. The launch of "Sputnik" causes a real shock in the USA, and not only in scientific circles, but also among ordinary people. This excellence was also realized in 1961, when the first cosmonaut - Yuri Gagarin - flew into space.

The date of the launch of Sputnik-1 is the beginning of the space age of mankind, and in Russia it is annually observed as a memorial day of space forces. In honor of the first artificial satellite of the Earth, a place on the surface of Pluto is named.

https://duma.bg/parviyat-izkustven-spatn...-g-n264280
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