At the beginning of the XX century the great Russian scientist, Konstantin Tsiolkovsky predicted that "mankind will not remain on Earth forever".
He was the chief constructor of the first Earth sputniks and spaceships. He was one
of the founders of modern
space-rocket
engineering.
It proved that living beings could survive in space. And this successful flight gave the Russian scientists confidence to send a human into space less than a year later.
The first international flight took place in 1975.On July 15 an American spacecraft “ Apollo” started from Canaveral and “Soyuz-19” from Baikonur.
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