Sputnik 1 was the first artificial Earth satellite. It had four external radio antennas to broadcast radio pulses. The Soviet Union launched it into an elliptical low Earth orbit on October 4, 1957.
Sputnik 1 was the first artificial Earth satellite. It had four external radio antennas to broadcast radio pulses. The Soviet Union launched it into an elliptical low Earth orbit on October 4, 1957. Space By: kjfitz
Space 
