4 oct. 1957 - Sputnik 1
Description:
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 diameter polished metal sphere, with four external radio antennas to broadcast radio pulses.Ajouté au bande de temps:
Date:
4 oct. 1957
Maintenaint
~ Il y a 66 ans
