Video encyclopedia

04/10/1957 Space age begins

Soviet Union launched Sputnik 1, first artificial satellite in history. It was a metal sphere, 58 centimetres in diameter, with four long radio antennas. It was visible by naked eye and broadcasted radio pulses detectable by amateur radio enthusiasts. People organized parties to spot Sputnik. It worked 21 days and completed 1440 orbits.


  • Essentials 

  • Before the launch 

  • Design 

  • Launch and mission 

  • Reaction 

  • Legacy