- History of spaceflight
The realistic proposal of
spaceflightgoes back to Konstantin Tsiolkovsky. His most famous work, " _ru. Исследование мировых пространств реактивными приборами" ("The Exploration of Cosmic Space by Means of Reaction Devices"), was published in 1903, but this theoretical work was not widely influential outside of Russia.
Spaceflight became an engineering possibility with the work of
Robert H. Goddard's publication in 1919 of his paper 'A Method of Reaching Extreme Altitudes'; where his application of the de Laval nozzleto liquid fuel rockets gave sufficient power that interplanetary travel became possible. This paper was highly influential on Hermann Oberthand Wernher Von Braun, later key players in spaceflight.
The first rocket to reach space was a prototype of the German
V-2 Rocket, on a test flight on October 3, 1942, although sub-orbital flight is not considered a spaceflight in Russia. On October 4, 1957, the Soviet Unionlaunched Sputnik 1, which became the first artificial satelliteto orbit the Earth. The first human spaceflightwas Vostok 1on April 12, 1961, aboard which Soviet cosmonaut Yuri Gagarinmade one orbit around the Earth.
Rockets remain the only currently practical means of reaching space. Other
non-rocket spacelaunchtechnologies such as scramjets still fall far short of orbital speed.
Timeline of spaceflight
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