
Scientists at Igy conference viewing Sputnik models | Moscow, Russia
Photographer: Howard Sochurek, 1958

Plotting of Sputnik I orbit on globe built by Robert H. Farquhar | Cambridge, Massachusetts
Photographer: Dmitri Kessel, 1957

Scientists at Igy conference viewing Sputnik models | Moscow, Russia
Photographer: Howard Sochurek, 1958

Plotting of orbit of Sputnik I by scientists at MIT | Cambridge, Massachusetts
Photographer: Dmitri Kessel, 1957

Model of Sputnik I on display at Soviet pavilion | 1958 World’s Fair | Brussels, Belgium
Photographer: Michael Rougier, 1958
(via LIFE photo archives)
Sputnik 1 was the first Earth-orbiting artificial satellite. It was launched into an elliptical low Earth orbit by the Soviet Union on October 4, 1957, and was the first in a series of satellites collectively known as the Sputnik program. The unanticipated announcement of Sputnik 1′s success precipitated the Sputnik crisis in the United States and ignited the Space Race within the Cold War. –Wikipedia
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